Answers
The bar chart showing the growth of the price per tone of ground nut over the years is attached accordingly.
What is a bar chart?A bar chart, sometimes known as a bar graph, is a type of chart or graph that displays categorical data using rectangular bars with heights or lengths proportionate to the values they represent. The bars can be plotted horizontally or vertically. A vertical bar chart is also known as a column chart.
From the bar chart, is clarer to see that the price of ground nut per tone increased steadily year on year.
By the year 2008, it had hit record high of 100,000 per ton.
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Related Questions
Terry bought a new television set for $450. She paid nothing down but agreed to payments of $40.03 per month for 12 months. Find the annual percentage rate for the loan using the APR table
The annual percentage rate is%
Answers
The annual percentage rate for Terry's loan is 19.21%.
What is statistics?
Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of numerical data.
To find the annual percentage rate (APR) for Terry's loan, we can use the following formula:
APR = (2 × Monthly Payment ÷ Loan Amount) × (12 ÷ Loan Term in Months + 1)
First, we need to calculate the total amount Terry will pay for the TV over the 12-month period:
Total payments = Monthly payment × Loan term in months
Total payments = $40.03 × 12
Total payments = $480.36
Next, we can use the formula to calculate the APR:
APR = (2 × $40.03 ÷ $450) × (12 ÷ 12 + 1)
APR = (0.1774) × (1.0833)
APR = 0.1921 or 19.21%
Therefore, the annual percentage rate for Terry's loan is 19.21%.
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PLEASE SOMEONE HELPP!!!!
i know that answer Is −12
8
1
but i need explain! 100points, plus 5 Stars+ brainliest
[tex] - 3 \frac{3}{4} - x = -6 \frac{1}{6} [/tex]
THIS IS MATH FOR 7TH GRADE!!
Answers
Answer:
[tex]x=2\frac{5}{12}[/tex]
Step-by-step explanation:
Given equation:
[tex]-3\frac{3}{4}-x=-6\frac{1}{6}[/tex]
Begin by adding x to both sides of the equation:
[tex]-3\frac{3}{4}-x+x=-6\frac{1}{6}+x[/tex]
[tex]-3\frac{3}{4}=-6\frac{1}{6}+x[/tex]
Add -6¹/₆ to both sides of the equation:
[tex]-3\frac{3}{4}+6\frac{1}{6}=-6\frac{1}{6}+x+6\frac{1}{6}[/tex]
[tex]-3\frac{3}{4}+6\frac{1}{6}=x[/tex]
Swap sides:
[tex]x=6\frac{1}{6}-3\frac{3}{4}[/tex]
Rewrite the mixed numbers as improper fractions by multiplying the whole number by the denominator of the fraction, adding this to the numerator of the fraction, and placing the answer over the denominator:
[tex]x=\dfrac{6 \times6+1}{6}-\dfrac{3 \times 4+3}{4}[/tex]
[tex]x=\dfrac{36+1}{6}-\dfrac{12+3}{4}[/tex]
[tex]x=\dfrac{37}{6}-\dfrac{15}{4}[/tex]
When subtracting fractions, we must ensure that they have the same denominator. To do this, find the least common multiple (LCM) of the two denominators.
As 6 and 4 are factors of 12, then 12 is the LCM.
Rewrite the fractions as their equivalent fractions (with a denominator of 12) by multiplying the numerator and denominator by the same number.
[tex]x=\dfrac{37\times 2}{6\times 2}-\dfrac{15\times3}{4\times3}[/tex]
[tex]x=\dfrac{74}{12}-\dfrac{45}{12}[/tex]
Now the fractions all have the same denominator, we can simply subtract the numerators:
[tex]x=\dfrac{74-45}{12}[/tex]
[tex]x=\dfrac{29}{12}[/tex]
Finally, convert the improper fraction into a mixed number:
[tex]x=\dfrac{24+5}{12}[/tex]
[tex]x=\dfrac{24}{12}+\dfrac{5}{12}[/tex]
[tex]x=2+\dfrac{5}{12}[/tex]
[tex]x=2\frac{5}{12}[/tex]
6. Social Security numbers are of the form XYZ - MN - ABCD.
a. The first three digits XYZ are referred to as the area number. The number is associated
with where you registered for your social security card. X is a number 1 - 7. Y and Z can
be any number 0 - 9. Also the area code 666 has never been used. How many area code
numbers are possible?
b. The middle two digits MN are referred to as the group number. The group number can
be any number from 01 to 99 (it cannot be 00). The last 4 digits ABCD are the serial
number. The serial number can be any from 0001 to 9999 (it cannot be 0000).
Additionally, the social security number 123-45-6789 is only used in advertisements.
How many social security numbers are possible?
Answers
a) The number of possible area code numbers is: 69,299. b) the number of possible social security numbers is: 68,665,031,401
How to determine the How many area code numbers are possiblea. The first three digits can be any number from 001 to 999, except for 666. Since X can be any number from 1 to 7, there are 7 choices for X. For Y and Z, there are 10 choices each (0-9). Therefore, the number of possible area code numbers is:
(7 choices for X) x (10 choices for Y) x (10 choices for Z) - 1 (for 666) = 69,299
b. The middle two digits can be any number from 01 to 99, which gives 99 choices. The last 4 digits can be any number from 0001 to 9999, which gives 9999 - 1 (for 0000) = 9998 choices. Therefore, the number of possible social security numbers is:
(69,299 choices for the area number) x (99 choices for the group number) x (9998 choices for the serial number) - 1 (for 123-45-6789) = 68,665,031,401
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5. a. A box contains 20 pens of which m are red. If 5 more pens of which 3 are red are added, the probability of selecting two red pens at random without replacement is 7/20 Find the value of m. b. The first four consecutive terms of a linear sequence are x,y, (2x + 1), (2y-3). i. Show that S4= 3(x+y) - 2. ii. Find the fifth term, U5
Answers
a. There are 4 red pens in the box.
b i. Simplifying, we get:
S₄ = 3(x + y) - 2
ii. The fifth term is 4y - 2x + 1.
What is probability?The chance of an event occurring is called the probability of the event happening. It tells us how likely it is for an event to happen; it does not tell us what is going to happen. There is an even chance of an event happening (happen/not happen).
a. Let the number of non-red pens be n, then we have m + n = 20. Also, after adding 5 more pens, we have m + 3 red pens and n + 2 non-red pens. The probability of selecting two red pens at random without replacement from these 25 pens is given by:
(m + 3)/(20 + 5) * (m + 2)/(20 + 4) = 7/20
Simplifying this equation, we get:
(m + 3)(m + 2) = 14 * 5
Expanding the left side and simplifying, we get:
m² + 5m - 36 = 0
Factoring this equation, we get:
(m + 9)(m - 4) = 0
Since m cannot be negative, we have:
m = 4
Therefore, there are 4 red pens in the box.
b. i. The sum of the first n terms of an arithmetic sequence can be given by:
Sₙ = n/2[2a + (n - 1)d]
where a is the first term, d is the common difference, and n is the number of terms. Using this formula, we can find S₄ as follows:
S₄ = 4/2[x + y + (2x + 1) + (2y - 3)]
= 2(3x + 3y - 1)
= 6(x + y) - 6 - 2
Simplifying, we get:
S₄ = 3(x + y) - 2
ii. The common difference of the sequence is given by:
d = y - x
Therefore, the fifth term can be expressed as:
U₅ = (2x + 1) + 4d
= (2x + 1) + 4(y - x)
= 4y - 2x + 1
Therefore, the fifth term is 4y - 2x + 1.
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a. There are 4 red pens in the box.
b i. Simplifying, we get:
S₄ = 3(x + y) - 2
ii. The fifth term is 4y - 2x + 1.
What is probability?The chance of an event occurring is called the probability of the event happening. It tells us how likely it is for an event to happen; it does not tell us what is going to happen. There is an even chance of an event happening (happen/not happen).
a. Let the number of non-red pens be n, then we have m + n = 20. Also, after adding 5 more pens, we have m + 3 red pens and n + 2 non-red pens. The probability of selecting two red pens at random without replacement from these 25 pens is given by:
(m + 3)/(20 + 5) * (m + 2)/(20 + 4) = 7/20
Simplifying this equation, we get:
(m + 3)(m + 2) = 14 * 5
Expanding the left side and simplifying, we get:
m² + 5m - 36 = 0
Factoring this equation, we get:
(m + 9)(m - 4) = 0
Since m cannot be negative, we have:
m = 4
Therefore, there are 4 red pens in the box.
b. i. The sum of the first n terms of an arithmetic sequence can be given by:
Sₙ = n/2[2a + (n - 1)d]
where a is the first term, d is the common difference, and n is the number of terms. Using this formula, we can find S₄ as follows:
S₄ = 4/2[x + y + (2x + 1) + (2y - 3)]
= 2(3x + 3y - 1)
= 6(x + y) - 6 - 2
Simplifying, we get:
S₄ = 3(x + y) - 2
ii. The common difference of the sequence is given by:
d = y - x
Therefore, the fifth term can be expressed as:
U₅ = (2x + 1) + 4d
= (2x + 1) + 4(y - x)
= 4y - 2x + 1
Therefore, the fifth term is 4y - 2x + 1.
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An incoming freshman took her college’s placement exams in French and mathematics. In French, she scored 92 and in math 80. The overall results on the French exam had a mean of 72 and a standard deviation of 17, while the mean math score was 70, with a standard deviation of 8. What are the z-scores for the two subjects?
A. -1.18, and 1.25
B. 1.18, and -1.25
C. 8, and 17
D. 1.18, and 1.25
Answers
The z-scores of the two subjects are 1.18, and 1.25 respectively
Given data ,
The z-score is a measure of how many standard deviations a data point is away from the mean of a data set.
z = (X - μ) / σ
where X is the data point, μ is the mean, and σ is the standard deviation.
For the French exam:
X = 92 (score obtained by the student)
μ = 72 (mean of the French exam)
σ = 17 (standard deviation of the French exam)
On simplifying , we get
z_french = (92 - 72) / 17 = 1.18
For the math exam:
X = 80 (score obtained by the student)
μ = 70 (mean of the math exam)
σ = 8 (standard deviation of the math exam)
z_math = (80 - 70) / 8 = 1.25
Hence , the z-scores are calculated
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A survey found that women's heights are normally distributed with mean 63.3 in. and standard deviation 3.8 in. The survey also found that men's heights are normally distributed with mean 67.3 in. and standard deviation 3.8 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 56 in. and a maximum of 64 in. Complete parts (a) and (b) below.
a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park?
The percentage of men who meet the height requirement is ?
Answers
The percentage of men who meet the height requirement is 19.09%. This result suggests that a relatively small proportion of men meet the height requirements for the characters at the amusement park.
To find the percentage of men who meet the height requirement, we need to calculate the probability that a randomly selected man has a height between 56 and 64 inches.
Using the z-score formula, we can standardize the height range as follows:
z = (64 - 67.3) / 3.8 = -0.87
z = (56 - 67.3) / 3.8 = -3.00
Using a standard normal distribution table, we can find that the area to the left of z = -0.87 is 0.1922 and the area to the left of z = -3.00 is 0.0013.
Therefore, the percentage of men meeting the height requirement is:
P(-0.87 < Z < -3.00) = P(Z < -0.87) - P(Z < -3.00) = 0.1922 - 0.0013 = 0.1909 or 19.09%.
It suggests that the park may be employing more women than men as characters, as the mean height for women is below the maximum height requirement.
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PLS HELP!! suppose a scatterplot is created from the points in the following table. when x=7, what is the second coordinate in a scatterplot of the linearized data? round the answer to the tenth place.
a. 0.8
b. 2.1
c. 54.3
d. 112.8
Answers
Answer:
D
Step-by-step explanation:
i think its D because next to x the y coordinate is 112.8
3
Please help
Question in image
Answers
Answer:
A. 12
Step-by-step explanation:
You want to know the length of tangent PQ, given that secant QS has segments QR = 8 and RS = 10. Points P, R, and S are on the circle. Point Q is external to the circle.
Secant relationThe relevant relation is ...
PQ² = QR·QS
x² = (8)(8+10) = 144
x = √144 = 12
The value of x is 12.
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Change 14,277 s to h, min, and s.
Answers
Answer:
3hours 237 minutes 5700 seconds
Step-by-step explanation:
Given : Number of seconds 14277 seconds.
To find : Change the seconds into h,min and second?
Solution :
We know that,
1 hour = 3600 seconds
1 second = hour
14277 seconds = hour
14277 seconds = 3.96583 hour
Now, in minutes
1 hour = 60 minutes
Now, in seconds
1 minute = 60 seconds
Therefore, 14277 seconds = 3 hours 237 minutes and 5700 seconds.
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C =5/9 × (F – 32) What is the answer
Answers
Answer:
c
=
5
9
⋅
(
f
−
32
)
Rewrite the equation as
5
9
⋅
(
f
−
32
)
=
c
.
5
9
⋅
(
f
−
32
)
=
c
Multiply both sides of the equation by
9
5
.
9
5
(
5
9
⋅
(
f
−
32
)
)
=
9
5
c
Simplify both sides of the equation.
Tap for more steps...
f
−
32
=
9
c
5
Add
32
to both sides of the equation.
f
=
9
c
5
+
32
A net of a square pyramid is shown below.
What is the surface area, in square centimeters, of the pyramid?
Answers
Answer:
Option (B) 86.7 is the correct answer.
Step-by-step explanation :
Dividing the given diagram in 5 parts :
Firstly finding the area of one right angle triangle :
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{1}{2} \times b \times h}[/tex]
↠ b (base) = 5.1 cm↠ h (height) = 5.95 cmsubstituting all the given values in the formula :
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{1}{2} \times 5.1 \times 5.95}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{1 \times 5.1 \times 5.95}{2}}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{5.1 \times 5.95}{2}}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{30.345}{2}}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = 15.1725\: {cm}^{2}}[/tex]
Hence, the area of right angle triangle is 15.1725 cm².
[tex]\begin{gathered} \end{gathered}[/tex]
Here we have 4 right angle triangle with equal base and height and we have already find the area of one right angle triangle. So, the area of 4 triangle will be :
[tex]\dashrightarrow\sf{Area_{(\triangle)} = 15.1725 \: {cm}^{2}}[/tex]
[tex]\dashrightarrow\sf{Area \: of \: 4{(\triangle)} = 15.1725 \times 4}[/tex]
[tex]\dashrightarrow\sf{Area \: of \: 4{(\triangle)} = 60.69 \: {cm}^{2}}[/tex]
Hence, the area of 4 right angle triangles is 60.69 cm².
[tex]\begin{gathered} \end{gathered}[/tex]
Now, we have to find the area of square
[tex]\longrightarrow\sf{Area_{(Square)} = {a}^{2}}[/tex]
↠ a (side) = 5.1 cmSubstituting the given value in the formula :
[tex]\longrightarrow\sf{Area_{(Square)} = {(5.1)}^{2}}[/tex]
[tex]\longrightarrow\sf{Area_{(Square)} = {(5.1 \times 5.1)}}[/tex]
[tex]\longrightarrow\sf{Area_{(Square)} = 26.01 \: {cm}^{2}}[/tex]
Hence, the area of square is 26.01 cm².
[tex]\begin{gathered} \end{gathered}[/tex]
Now, calculating the total area :
[tex]{\sf{\implies{Total \: Area = Area_{(\triangle)} + Area_{(Square)}}}}[/tex]
↠ Area of triangle = 60.69 cm²↠ Area of square = 26.01 cm².[tex]{\sf{\implies{Total \: Area = 60.69 + 26.01}}}[/tex]
[tex]{\sf{\implies{Total \: Area = 86.7 \: {cm}^{2}}}}[/tex]
Hence, the total area of given diagram is 86.7 cm².
———————————————Answer:
Option (B) 86.7 is the correct answer.
Step-by-step explanation :
Dividing the given diagram in 5 parts :
Firstly finding the area of one right angle triangle :
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{1}{2} \times b \times h}[/tex]
↠ b (base) = 5.1 cm↠ h (height) = 5.95 cmsubstituting all the given values in the formula :
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{1}{2} \times 5.1 \times 5.95}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{1 \times 5.1 \times 5.95}{2}}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{5.1 \times 5.95}{2}}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = \dfrac{30.345}{2}}[/tex]
[tex]\dashrightarrow\sf{Area_{(\triangle)} = 15.1725\: {cm}^{2}}[/tex]
Hence, the area of right angle triangle is 15.1725 cm².
[tex]\begin{gathered} \end{gathered}[/tex]
Here we have 4 right angle triangle with equal base and height and we have already find the area of one right angle triangle. So, the area of 4 triangle will be :
[tex]\dashrightarrow\sf{Area_{(\triangle)} = 15.1725 \: {cm}^{2}}[/tex]
[tex]\dashrightarrow\sf{Area \: of \: 4{(\triangle)} = 15.1725 \times 4}[/tex]
[tex]\dashrightarrow\sf{Area \: of \: 4{(\triangle)} = 60.69 \: {cm}^{2}}[/tex]
Hence, the area of 4 right angle triangles is 60.69 cm².
[tex]\begin{gathered} \end{gathered}[/tex]
Now, we have to find the area of square
[tex]\longrightarrow\sf{Area_{(Square)} = {a}^{2}}[/tex]
↠ a (side) = 5.1 cmSubstituting the given value in the formula :
[tex]\longrightarrow\sf{Area_{(Square)} = {(5.1)}^{2}}[/tex]
[tex]\longrightarrow\sf{Area_{(Square)} = {(5.1 \times 5.1)}}[/tex]
[tex]\longrightarrow\sf{Area_{(Square)} = 26.01 \: {cm}^{2}}[/tex]
Hence, the area of square is 26.01 cm².
[tex]\begin{gathered} \end{gathered}[/tex]
Now, calculating the total area :
[tex]{\sf{\implies{Total \: Area = Area_{(\triangle)} + Area_{(Square)}}}}[/tex]
↠ Area of triangle = 60.69 cm²↠ Area of square = 26.01 cm².[tex]{\sf{\implies{Total \: Area = 60.69 + 26.01}}}[/tex]
[tex]{\sf{\implies{Total \: Area = 86.7 \: {cm}^{2}}}}[/tex]
Hence, the total area of given diagram is 86.7 cm².
———————————————Juan catches 80% of the passes thrown to him in football. If the quarterback throws to him 15 times during a game, what is the probability he will catch atleast 10 of them?
Answers
the probability that Juan will catch at least 10 passes out of 15 is approximately 0.9951, or about 99.51%.
We may utilise the binomial distribution formula to resolve this issue:
P(X ≥ 10) = 1 - P(X < 10)
where P(X 10) is the likelihood that Juan catches fewer than 10 passes and X is the total number of passes he catches.
By applying the binomial distribution formula, we may determine P(X 10):
P(X < 10) = Σ(k=0 to 9) [(15 select k)×(0.8)k×(0.2)×(15-k)]
where (15 select k) is the binomial coefficient and (0.8)k×(0.2)(15-k) is the probability of catching k passes and missing (15-k) passes, and (15 choose k) is the number of possibilities to choose k items out of 15.
P(X 10) can be calculated using a calculator or a spreadsheet and is roughly equal to 0.0049.
P(X 10) is therefore equal to 1 - P(X 10) 1 - 0.0049 0.9951.
So the probability that Juan will catch at least 10 passes out of 15 is approximately 0.9951, or about 99.51%.
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Circle O shown below has a radius of 8 inches. To the nearest tenth of an inch, determine the length of the arc, x, subtended by an angle of 74 .
Answers
The length of the arc, x, subtended by an angle of 74° in a circle with a radius of 8 inches is approximately 13.1 inches.
What is the central angle?A central angle is an angle with endpoints located on a circle's circumference and a vertex located at the circle's center (Rhoad et al. 1984, p. 420). A central angle in a circle determines an arc.
The length of an arc, x, subtended by an angle of 74° in a circle with a radius of 8 inches can be found using the formula:
x = (θ/360) × 2πr
where θ is the central angle in degrees, r is the radius of the circle, and π is the mathematical constant pi.
Substituting the given values, we get:x = (74/360) × 2π(8)
x ≈ 4.17π
To get the value to the nearest tenth of an inch, we can use the approximation π ≈ 3.14:
x ≈ 4.17 × 3.14
x ≈ 13.1
Therefore, the length of the arc, x, subtended by an angle of 74° in a circle with a radius of 8 inches is approximately 13.1 inches.
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What is mHI?
mHI
I
=
H
O
120°
120°
J
Answers
The calculated value of the measure of the arc HI is 55 degrees
Calculating the measure of the arc HIFrom the question, we have the following parameters that can be used in our computation:
The circle
The sum of angles at a point is 360
So, we have
∠HAI + 60 + 100 + 145 = 360
When the like terms are evaluated, we have
∠HAI = 55
The angle subtended by the arc equals the angle at the center
This means that
mHI = ∠HAI
By substitution, we have
mHI = 55 degrees
Hence, the arc HI is 55 degrees
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Let ABC be any triangle .D is the midpoint of [BC]
1) Locate the points M, N and I such that :
MA+MB = 0
3NA+NC = 0
IM +2IN = 0
Answers
Answer:
We can use vectors to solve this problem. Let's assume that the position vector of point A is a, and the position vectors of points B and C are b and c respectively.
Since D is the midpoint of BC, we can find its position vector as:
d = (b + c)/2
Now, let's find the position vectors of M, N, and I using the given conditions:
MA + MB = 0
This means that the vector MA is equal in magnitude and opposite in direction to the vector MB. Since M is a point on the line segment AB, we can write:
MA = M - a
MB = M - b
So, MA + MB = 0 gives us:
M - a + M - b = 0
2M = a + b
M = (a + b)/2
Therefore, the position vector of M is:
m = (a + b)/2
Similarly, we can find the position vectors of N and I:
3NA + NC = 0
This means that the vector NA is three times the magnitude of the vector NC, and they are in opposite directions. Since N is a point on the line segment AC, we can write:
NA = N - a
NC = N - c
So, 3NA + NC = 0 gives us:
3(N - a) + (N - c) = 0
4N = 3a + c
N = (3a + c)/4
Therefore, the position vector of N is:
n = (3a + c)/4
IM + 2IN = 0
This means that the vector IM is twice the magnitude of the vector IN, and they are in opposite directions. Since I is a point on the line segment DM, we can write:
IM = I - m
IN = I - n
So, IM + 2IN = 0 gives us:
I - m + 2(I - n) = 0
3I = 2m + 2n
I = (2m + 2n)/3
Therefore, the position vector of I is:
i = (2m + 2n)/3
So, the points M, N, and I are located at:
M = (a + b)/2
N = (3a + c)/4
I = (2m + 2n)/3
where:
m = (a + b)/2
n = (3a + c)/4
Mai is jogging from her house to school. Her school is 2 5/6 miles from her house. She has gone 1 3/5 miles so far. How many miles does Mai still have to jog? Write your answer as a mixed number in simplest form.
Answers
Step-by-step explanation:
[tex]2 \times \frac{5}{6} = \frac{17}{6} [/tex]
[tex]1 \times \frac{3}{5} = \frac{8}{5} [/tex]
[tex] \frac{17}{6} - \frac{8}{5} [/tex]
[tex] \frac{17}{6} \times 5 = \frac{85}{30} [/tex]
[tex] \frac{8}{5} \times 6 = \frac{48}{30} [/tex]
[tex] \frac{85}{30} - \frac{48}{30} = \frac{37}{30} [/tex]
[tex]37 \div 30 = 7 \times \frac{1}{30} [/tex]
so 7 1/30
Solve the equation. Write the solution set with the exact values given in terms of common or natural logarithms. Also give approximate solutions to at least 4 decimal places.
539=13^r+9
Answers
The solution for r is:
r = ln(539)/ln(13) - 9
And an estimation is:
r = -6.5478
How to solve the exponential equation?Remember the rule for logarithms of powers:
ln(x^n) = n*ln(x)
Now let's look at our equation, here we have:
539 = 13^(r + 9)
We want to solve this equation for r, to do so, we can apply the natural logarithm in both sides:
ln(539) = ln( 13^(r + 9))
Using the rule we can rewrite this as:
ln(539)= (r + 9)*ln(13)
Now just solve the equation for r:
r = ln(539)/ln(13) - 9
And an approximate solution is:
r = -6.5478
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Find the vertex and the axis of symmetry of the parabola given by the equation.
y = −x2 + 16x − 65
Answers
The axis of symmetry of the parabola is 8.
The vertex of the parabola is (8, -1).
How to find the vertex and the axis of symmetry of a parabola?The vertex of a parabola in standard form, y = ax² + bx + c, is given by:
Vertex, (h, k) = (-b/2a, c - b²/4a)
For y = -x² + 16x − 65:
a = -1, b = 16 and c = -65
-b/2a = -16/2(-1)
-b/2a = 8
c - b²/4a = -65 - (16)²/4(-1)
c - b²/4a = -65 + 64
c - b²/4a = -1
Vertex, (h, k) = (8, -1)
For a parabola in standard form, y = ax² + bx + c, the axis of symmetry of the parabola is given by:
x = -b/2a
For y = -x² + 16x − 65:
a = -1 and b = 16
Thus, the axis of symmetry of the parabola is:
x = -16/2(-1)
x = 8
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What is the meaning of "Since the angle from axis j to axis i is [tex]\pi (i-j)/n[/tex], it follows that [tex]s _{i}\circ s_{j}=r_{i-j}[/tex]?
Answers
This statement describes the relationship between symmetries and rotations
Explaining the meaning of the statement as statedIn this context, "axis i" and "axis j" refer to two different coordinate axes, and "n" is the total number of axes. The notation "s_i" represents a reflection transformation across axis i, and "r_k" represents a rotation transformation that rotates the entire coordinate system by an angle of 2πk/n, where k is an integer between 0 and n-1.
The statement "Since the angle from axis j to axis i is π(i-j)/n, it follows that s_i ∘ s_j = r_{i-j}" means that if we reflect the coordinate system across axis i, and then reflect it again across axis j, the resulting transformation is equivalent to rotating the entire coordinate system by an angle of 2π(i-j)/n. In other words, the composition of the two reflections is equivalent to a single rotation.
This relationship is important in the study of group theory and symmetry, where it is used to understand the properties of groups of transformations that preserve the symmetry of an object or system.
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Please help me im struggling with my test
Answers
The y-intercept is (0, 10) and the values of x that make sense are x > 0
The graph of the functionFrom the question, we have the following parameters that can be used in our computation:
y = 10(2)^x
The graph is added as an attachment
The y-interceptThis is the point of intersection with the y-axis
From the graph, it is (0, 10)
The values of x that make senseThese are the values whose corresponding y values are not negative
In other words, the values are x > 0
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2.4.4 Quiz: Parabolas with Vertices Not at the Origin
The vertex of this parabola is at (2, -4). When the y-value is -3, the x-value is
-3. What is the coefficient of the squared term in the parabola's equation?
10
-10
OA. -1
B. 1
10-
C. 5
OD. -5
(2,-4)
10
Answers
y = a(x - 2)^2 - 4
where a is the coefficient of the squared term.
To find the value of a, we need to use the fact that when y = -3, x = -3. Substituting these values into the equation, we get:
-3 = a(-3 - 2)^2 - 4
Simplifying the expression, we get:
-3 = 25a - 4
Solving for a, we get:
a = -1/5
Therefore, the coefficient of the squared term in the parabola's equation is -1. So it’s A
2/9 ÷2/8_____ reduce the answer to the lowest terms
Answers
Planes T and X are parallel. Plane T contains line a. Plane X contains line b.
Planes T and X are parallel. Plane T contains line a and plane X contains line b.
Which best explains the relationship between lines a and b?
Answers
Which data set has the largest standard deviation
Answers
The biggest standard deviation belongs to B. 1,6,3,15,4,12,8. This is due to the fact that this data set's range of values is substantially wider than that of the other sets, which raises the standard deviation.
what does standard deviation mean?
In statistics, standard deviation is a measure of the amount of variability or dispersion in a set of data. It measures how spread out the data is from the mean or average value.
The standard deviation serves as a gauge for how widely dispersed from the mean a set of data is. It is calculated by averaging the squared deviations from the mean, or variance, which is the variance expressed as a square root. In statistics and probability theory, the standard deviation is frequently used to quantify the variability of a data collection. It is crucial to understand that standard deviation differs from a data set's range, which is only the difference between greatest and lowest values.
Because standard deviation accounts for all of the data points in the set, it is a more accurate statistic.
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Complete Question:
Which data set has the largest standard deviation
A.3,4,3,4,3,4,3
B.1,6,3,15,4,12,8
C. 20, 21,23,19,19,20,20
D.12,14,13,14,12,13,12
PLEASE HELP!! WILL GIVE BRAINLEST AND 100 POINTS FOR CORRECT ANSWER ONLY !!
(Enlarge photo)
Answers
Answer:B
Step-by-step explanation:the triangle has 3 sides
Write about plane of contact , pole and polar plane ?
Explain all briefly!
Answers
The concepts of plane of contact, pole, and polar plane are related to the study of conic sections in geometry.
Plane of Contact:
The plane of contact is a plane that passes through the points of intersection of a cone and a plane. In other words, when a plane intersects a cone, the points where the plane and cone touch determine a plane of contact. This plane is important in determining the properties of the conic section that is formed by the intersection.
Pole:
The pole is a point that is used to define a polar plane. It is a point that is not on the plane and is located on the axis of the cone. When a plane passes through the pole, it intersects the cone in a conic section. The pole is a useful concept in determining the properties of the conic section.
Polar Plane:
The polar plane is a plane that passes through the pole and is perpendicular to the plane of contact. It is the plane that contains the polar axis, which is the axis of the cone passing through the pole. The polar plane is important in determining the properties of the conic section that is formed by the intersection of the cone and the plane of contact.
In summary, the plane of contact, pole, and polar plane are all concepts that are used in the study of conic sections. The plane of contact is a plane that passes through the points of intersection of a cone and a plane. The pole is a point on the axis of the cone that is used to define a polar plane. The polar plane is a plane that passes through the pole and is perpendicular to the plane of contact. These concepts are important in determining the properties of conic sections and are used in various applications, including optics, astronomy, and engineering.
Answer:
Step-by-step explanation:
Sure! Let's start with the plane of contact.
Plane of Contact:
The plane of contact is a term commonly used in geometry and physics. When two objects come into contact with each other, their surfaces touch at a particular area. This area of contact is known as the plane of contact. It is a two-dimensional surface that represents the point of contact between the two objects.
Imagine two books placed on a table. The area where the bottom surface of each book touches the table is the plane of contact. It is like a flat sheet that separates the objects and defines the region where they interact with each other.
Pole and Polar Plane:
The concepts of pole and polar plane are closely related to the plane of contact. Let's explore them:
Pole:
In geometry, the pole is a point that represents the point of contact between a line and a plane. When a line is in contact with a plane, the point of contact is called the pole. It is the specific point where the line intersects the plane.
For example, if you have a line placed on a tabletop, the point where the line touches the surface is its pole.
Polar Plane:
The polar plane is the plane that contains all the lines passing through a specific point called the pole. In other words, the polar plane is a plane that is perpendicular to the line at its pole.
Continuing with the previous example, if you have a line touching the tabletop at a certain point, the polar plane would be a plane that is perpendicular to the line at that point. It includes all the lines passing through that point.
The pole and polar plane are connected in such a way that every line passing through the pole lies on the polar plane, and the polar plane contains the pole.
In summary, the plane of contact represents the area where two objects touch each other, while the pole represents the point of contact between a line and a plane. The polar plane is a plane that contains all the lines passing through the pole.
Hope it helps!!
Determine the value(s) for which the rational expression −6a−10−5a−8 is undefined. If there's more than one value, list them separated by a comma, e.g. a=2,3.
Answers
Since the rational expression is incorrectly constructed, I am unable to determine what it actually means.
I'll attempt to respond to this in a general approach so that you may try to apply it to the specific issue.
Let's say that this is our expression of reason:
[tex]\frac{-6a-10}{-5a-8}[/tex]
There is no undefined value because the numerator is -12d and this component is unaffected by any value of d.
-5a-8 is the denominator.
Any rational expression that has a denominator equal to zero is now undefined. (we can not divide by zero)
Thus, a value that is undefined will be when
-5a-8 = 0
d = 8/5
This means that the number d = 8/5 is invalid because it would cause the denominator to be equal to 0.
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1) Find AB
B
A 9 in
Use the Law of
Sines:
SinA
a
(0) 8 in
A
54°
11 in
D 7 in
5 in
SinB
b
12
31 in
SinC
C
Remember
Answers
Check the picture below.
[tex]\textit{Law of sines} \\\\ \cfrac{\sin(\measuredangle A)}{a}=\cfrac{\sin(\measuredangle B)}{b}=\cfrac{\sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{\sin(54^o)}{31}=\cfrac{\sin(12^o)}{AB}\implies AB\sin(54^o)=31\sin(12^o) \\\\\\ AB=\cfrac{31\sin(12^o)}{\sin(54^o)}\implies AB\approx 8~in[/tex]
Make sure your calculator is in Degree mode.
In January, the amount of snowfall was 5 2/3 feet. In February, the amount of snowfall was 3 1/5 feet. What was the amount of snowfall in the two months combined? Write your answer as a mixed number in simplest form.
Answers
Answer:
Step-by-step explanation:
To add these fractions, we need a common denominator. The smallest common multiple of 3 and 5 is 15.
Converting 2/3 to fifteenths:
2/3 = 10/15
Converting 1/5 to fifteenths:
1/5 = 3/15
Now, we can add:
5 10/15 + 3 3/15 = 8 13/15
Therefore, the amount of snowfall in the two months combined was 8 13/15 feet.
If 600 bolts were already examined and 12 were defective, determine the probability that next bolt found would be nondefective.
Answers
The probability that the next bolt found would be non-defective is 0.98 or 98%.
What is Probability Theory?A fundamental idea in mathematics and statistics, probability theory has several uses in the sciences, engineering, business, and social sciences. It is used to assess risks and uncertainties in diverse circumstances, analyse and forecast the possibility of events happening, and make decisions in the face of uncertainty.
Given:
Number of bolts already examined = 600
Number of defective bolts found = 12
Number of non-defective bolts = Total number of bolts examined - Number of defective bolts
= 600 - 12
= 588
Probability of finding a non-defective bolt = Number of non-defective bolts / Total number of bolts
= 588 / 600
= 0.98 or 98%
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