There were 24 students working in area B in the morning, and 3 times as many, or 72 students, working in area A. The total number of students is then 24 + 72 = 96.
What is an area?In geometry, an area is the measurement of the amount of space inside a two-dimensional flat surface such as a square, rectangle, triangle, circle, or any other shape. It is usually expressed in square units, such as square centimeters (cm²) or square meters (m²), and is calculated by multiplying the length and width of a rectangular shape or by using specific formulas for different geometric shapes such as the base times the height divided by 2 for a triangle or pi times the radius squared for a circle. The concept of area is fundamental in many branches of mathematics, physics, engineering, and other fields where the measurement of the extent of a surface is important.
According to the given equationLet's assume that the number of students working in area b is x. Then the number of students working in area A is 3x (since there are three times as many students working in area A as in area b in the morning).
Let A be the area of area a, and B be the area of area b. We know that A = 1.5B (since area a is 1 1 2 times the area of area b).
In the morning, the total number of students is x + 3x = 4x.
In the afternoon, 7/12 of the students work in area a, and the rest work in area b. So, the number of students working in area A in the afternoon is 7/12 * 4x = 7x/3, and the number of students working in area b is (1 - 7/12) * 4x = 5x/12.
Since area a was finished at the end of the day, we know that the total area cleaned by the students is A + B = 1.5B + B = 2.5 B. This means that the number of students working in area b is enough to finish 0.5B (since area a was already finished), but 4 more students are needed to finish the remaining 0.5B.
So, we can set up the following equation:
(5x/12) / x = 0.5 / (0.5 + 4/x)
Simplifying this equation, we get:
5x = 6x + 24
x = 24
Therefore, there were 24 students working in area b in the morning, and 3 times as many, or 72 students, working in area A. The total number of students is then 24 + 72 = 96.
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The probability that a city bus is ready for service when needed is 84%. The probability that a city bus is ready for service and has a working radio is 67%. Find the probability that a bus chosen at random has a working radio given that it is ready for service. Round to the nearest tenth of a percent.
The probability that a bus chosen at random has a working radio given that it is ready for service is approximately 85.3%
How to find the probability of a bus having a working radio given that it is ready for service?
We can use Bayes' theorem to find the probability of a bus having a working radio given that it is ready for service,
P(radio | ready) = P(ready | radio) * P(radio) / P(ready)
where
P(radio | ready) is the probability that a bus has a working radio given that it is ready for service.
P(ready | radio) is the probability that a bus is ready for service given that it has a working radio.
P(radio) is the probability that a bus has a working radio.
P(ready) is the probability that a bus is ready for service.
From the given information, we know that:
P(ready) = 0.84
P(radio | ready) = 0.67
To find P(ready | radio), we can use the formula:
P(ready | radio) = P(ready and radio) / P(radio)
From the given information, we know that:
P(ready and radio) = P(radio | ready) × P(ready) = 0.67 × 0.84 = 0.5628
To find P(radio), we can use the law of total probability:
P(radio) = P(radio | ready) × P(ready) + P(radio | not ready) × P(not ready)
We can assume that if a bus is not ready for service, it doesn't matter if it has a working radio or not. So we can simplify the equation to:
P(radio) = P(radio | ready) × P(ready) + P(radio | not ready) × (1 - P(ready))
From the given information, we know that:
P(radio | ready) = 0.67
P(ready) = 0.84
We don't have information about P(radio | not ready), but we can assume that it is lower than P(radio | ready) since a bus that is not ready for service is more likely to have a broken radio. Let's assume P(radio | not ready) = 0.3.
Then, we can calculate,
P(radio) = 0.67 × 0.84 + 0.3 × (1 - 0.84) = 0.6596
Now, we want to find P(radio | ready),
P(radio | ready) = P(ready | radio) × P(radio) / P(ready)
P(ready | radio) = P(ready and radio) / P(radio) = 0.5628 / 0.6596 = 0.853
Therefore, the probability that a bus chosen at random has a working radio given that it is ready for service is approximately 85.3% (rounded to the nearest tenth of a percent).
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The probability that a bus chosen at random has a working radio given that it is ready for service is approximately 85.3%
How to find the probability of a bus having a working radio given that it is ready for service?
We can use Bayes' theorem to find the probability of a bus having a working radio given that it is ready for service,
P(radio | ready) = P(ready | radio) * P(radio) / P(ready)
where
P(radio | ready) is the probability that a bus has a working radio given that it is ready for service.
P(ready | radio) is the probability that a bus is ready for service given that it has a working radio.
P(radio) is the probability that a bus has a working radio.
P(ready) is the probability that a bus is ready for service.
From the given information, we know that:
P(ready) = 0.84
P(radio | ready) = 0.67
To find P(ready | radio), we can use the formula:
P(ready | radio) = P(ready and radio) / P(radio)
From the given information, we know that:
P(ready and radio) = P(radio | ready) × P(ready) = 0.67 × 0.84 = 0.5628
To find P(radio), we can use the law of total probability:
P(radio) = P(radio | ready) × P(ready) + P(radio | not ready) × P(not ready)
We can assume that if a bus is not ready for service, it doesn't matter if it has a working radio or not. So we can simplify the equation to:
P(radio) = P(radio | ready) × P(ready) + P(radio | not ready) × (1 - P(ready))
From the given information, we know that:
P(radio | ready) = 0.67
P(ready) = 0.84
We don't have information about P(radio | not ready), but we can assume that it is lower than P(radio | ready) since a bus that is not ready for service is more likely to have a broken radio. Let's assume P(radio | not ready) = 0.3.
Then, we can calculate,
P(radio) = 0.67 × 0.84 + 0.3 × (1 - 0.84) = 0.6596
Now, we want to find P(radio | ready),
P(radio | ready) = P(ready | radio) × P(radio) / P(ready)
P(ready | radio) = P(ready and radio) / P(radio) = 0.5628 / 0.6596 = 0.853
Therefore, the probability that a bus chosen at random has a working radio given that it is ready for service is approximately 85.3% (rounded to the nearest tenth of a percent).
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Determine the rate of change of the function given by the table.
The rate of change of the function given by the table is 1.
What is the rate of change?The rate of change represents the ratio of one quantity compared to another.
The rate of change is also known as the slope (the Rise/the Run), the gradient, unit rate, or constant rate of proportionality.
The rate of change is computed as the quotient between the Change in the Rise and the Change in the Run.
x y Rate of Change
5 3
6 4 1 (1/1)
7 5 1 (1/1)
8 6 1 (1/1)
Thus, for the function represented by the table, the rate of change or unit rate is 1.
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simplified version of 3 square root 4x over 5
3√4x/5
the / slash before the 5 is over so you put the 3√4x at the top of the fraction and the 5 at the bottom, so it would be 3√4x divide 5
An architect is considering bidding for the design of a new museum. The cost of drawing plans and submitting a model is $11,000. The probability of being awarded the bid is 0.2. If the architect is awarded the bid, she will make $180000 minus the $55000 cost for plans and a model.
We can compute the expected value using the given values in the problem such as we have the cost of drawing and submitting the model amounting of $11,000.
We also know that once the project is awarded to them, the anticipated profit is $180,000. Therefore, the expected value is just $180,000 minus $55,000 and the answer is $125,000.
We can compute the expected value using the given values in the problem such as we have the cost of drawing and submitting the model amounting of $11,000.
We also know that once the project is awarded to them, the anticipated profit is $180,000. Therefore, the expected value is just $180,000 minus $55,000 and the answer is $125,000.
You are walking from home to a shoe store. You stop for a rest after 1/3 miles. The shoe store is actually 3/4 miles from home. How much farther do you have to walk? Write your answer as a fraction in simplest form.
Answer:
[tex]\frac{5}{12}[/tex]
Step-by-step explanation:
[tex]\frac{3}{4}[/tex] - [tex]\frac{1}{3}[/tex]
[tex]\frac{9}{12}[/tex] - [tex]\frac{4}{12}[/tex] = [tex]\frac{5}{12}[/tex]
Helping in the name of Jesus.
7. You record the heights of two plants each month for 3 months. In what month will Plant A be as tall as Plant B?
Answer:
16
Step-by-step explanation:
starting from month 2, how many more months will A be as tall as B?
A grows at 1.75 in per month
B grows at 1.5in per month
so 7.5+1.75x = 11+1.5x
solve for x
x=14
so from month 2, need to go for another 14 mos.
so at month 16, they'll be same height
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros. √5,5i
The polynomial function of lowest degree with rational coefficients P(x) = x⁴ + 20x² - 125
What is a polynomial?A polynomial is a mathematical expression in which the power of the unknown is greater than or equal to 2.
To find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros. √5,5i.
Since √5 and 5i are zeros, then their conjugates -√5, and -5i are also zeros.
So,
x = √5,x = 5i.x = -√5,x = -5iSo, the factors of the polynomial are
x - √5,x - 5i.x + √5,x + 5iSo, multiplying the factors together, we get the polynomial.
So, P(x) = (x - √5)(x - 5i)(x + √5)(x + 5i)
= (x - √5)(x + √5)(x - 5i)(x + 5i)
= [x² - (√5)²][x² - (5i)²]
= [x² - 5][x² - (5²i²)]
= [x² - 5][x² - 25(-1))]
= [x² - 5][x² + 25]
Expanding the brackets, we have
= [x² - 5][x² + 25]
= [x² × x² + 25x² - 5x² + 25 × (-5)]
= x⁴ + 20x² - 125
So, P(x) = x⁴ + 20x² - 125
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The principal P is borrowed at a simple interest rate r for a period of time t. Find the simple interest owed for the use of the money. Assume there are 360 days in a year.
P = $3000, r = 2.5%, t = 9 months
The simple interest owed for the use of the money is $56.25.
The following formula can be used to determine the simple interest due for the usage of the money:
Simple Interest = P x r x t ÷ 360
Where P is the principal amount borrowed, r is the annual interest rate as a decimal, and t is the time period in days.
In this case, the principal amount P is $3000, the interest rate r is 2.5% or 0.025 as a decimal, and the time period t is 9 months or 270 days (assuming 30 days per month).
Simple Interest (SI) = $3000 x 0.025 x 270 ÷ 360
SI = $56.25
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Find the standard form of the equation of the ellipse with the given characteristics and center at the origin.
The x y-coordinate plane is given. The curve starts at the point (0, 5), goes down and right, changes direction at the point (2, 0), goes down and left, changes direction at the point (0, −5), goes up and left, changes direction at the point (−2, 0), goes up and right, continuing until it reaches its starting point.
The standard form equation of the ellipse as described in the task content is;
x²/2² + y²/5² = 1What is the standard form equation of the ellipse as described?It is evident from the task content that the standard form equation of the ellipse is to be determined.
Recall, the equation of an ellipse takes the form;
(x - h)²/a² + (y - k)²/b² = 1
where (h, k) is the center and a represents the distance of the center to each vertex on the x-axis and b represents the distance from the center to each vertex on the y-axis.
Therefore, for the given scenario where center is at the origin; the equation of the ellipse is;
x²/2² + y²/5² = 1
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ASAP Dr. Rollins is both an anthropologist and archeologist. While excavating some ruins in South America, he discovered a scale drawing of a replica of a Mayan pyramid.
-The scale for the drawing to the replica was 1 inch : 2 feet.
- The scale for the replica to the actual pyramid was 1 foot : 14 feet.
If the height of the pyramid on the drawing was 3 1/2 inches, what was the height of the actual pyramid?
A. 98 feet
B. 49 feet
C. 91 feet
D. 196 feet
The height of the actual pyramid is 98 feet.
How to find the height of the actual pyramid?
To find the height of the actual pyramid, we need to use the two scales given to us and convert the height on the drawing to the height of the actual pyramid. Here are the steps to follow,
Use the scale for the drawing to the replica to convert the height on the drawing to the height of the replica,
[tex]3 \frac{1}{2} \: inches \: \times \frac{2 \: feet}{ 1 \: inch}= 7 \: feet[/tex]
Use the scale for the replica to the actual pyramid to convert the height of the replica to the height of the actual pyramid,
[tex]7 \: feet \times \frac{ 14 \: feet }{1 \: foot}= 98 \: feet[/tex]
Therefore, the height of the actual pyramid is 98 feet. The answer is A. 98 feet.
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Given the function f(x) =3x^2-6x-9 is the point (1,-12) on the graph of f?
Answer: Yes
Step-by-step explanation:
For questions like this, youve been given a value for x, and a value for y.
Plug in and see if it works out!
[tex]3x^2- 6x - 9 = y[/tex]
[tex]3(1)^2- 6(1) - 9 = -12[/tex] ----- Plugging in for x and y
[tex]3 - 6 - 9 = -12[/tex]
[tex]-12 = -12[/tex]
Since -12 is indeed equal to -12, we conclude the statement is true;
In terms of the graph, this translates to, "Yes, the point (1, -12) is on the graph of [tex]y = 3x^2- 6x - 9[/tex]
So your answer is Yes
From the set {21, 29, 49}, use substitution to determine which value of x makes the equation true. 8(x - 20) = 304 A. 49 B. none of these C. 29 D. 21
Answer:
We can solve this equation by using substitution. We substitute each value of x in the given set and check which one makes the equation true.
Let’s start with A. 8(x - 20) = 304 becomes 8(49 - 20) = 304 which simplifies to 8(29) = 304 which is not true.
Let’s try B. 8(x - 20) = 304 becomes 8(none of these - 20) = 304 which simplifies to 8(-20) = 304 which is not true.
Let’s try C. 8(x - 20) = 304 becomes 8(29 - 20) = 304 which simplifies to 8(9) = 304 which is not true.
Finally, let’s try D. 8(x - 20) = 304 becomes 8(21 - 20) = 304 which simplifies to 8(1) = 304 which is not true.
Therefore, none of these values of x make the equation true
Step-by-step explanation:
find the mean median and mode of 12,9,17,15,10 after each data value increases my 20%
The mean of the new data set is 15.12. and the median of the new data set is 14.4.
To increase each data value by 20%, we can multiply each value by 1.20. So the new data set becomes:
12 x 1.20 = 14.4
9 x 1.20 = 10.8
17 x 1.20 = 20.4
15 x 1.20 = 18
10 x 1.20 = 12
New data set: 14.4, 10.8, 20.4, 18, 12
To find the mean, we add up all the values and divide by the total number of values:
Mean = (14.4 + 10.8 + 20.4 + 18 + 12) / 5 = 15.12
Therefore, the mean of the new data set is 15.12.
To find the median, we first need to order the data set from smallest to largest:
10.8, 12, 14.4, 18, 20.4
The median is the middle value in the ordered set, which is 14.4.
Therefore, the median of the new data set is 14.4.
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The graphs of the functions f(x) = 6x² and g(x) = x + 12 are shown below. Determine the
approximate solution(s) to the given functions. Show or explain your reasoning.
The approximate solution(s) to the given functions are x= -4/3, 3/2.
The given functions are f(x)=6x² and g(x)=x+12.
Set the functions equal to each other, then solve for the variable.
f(x)=g(x)
6x² = x+12
6x²-x-12=0
By splitting middle term we get
6x²-9x+8x-12=0
3x(2x-3)+4(2x-3)=0
(2x-3)(3x+4)=0
2x-3=0 and 3x+4=0
x= -4/3, 3/2
Therefore, the approximate solution(s) to the given functions are x= -4/3, 3/2.
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You purchased 96 ounces of fruit. Fruit costs $3 per pound. The cashier says you owe $4,608 for the fruit, but you know that is not correct. Look at the cashier's work and figure out how much you should pay. Explain what the cashier did wrong. 96 x 16 = 1,536 pounds 1,536 pounds x $3 = $4,608
Answer: you pay 18$
Step-by-step explanation:96 ounce×1pound/16ounce×3$/1pound=18$
The amount the cashier charged is incorrect. Based on the given information, the amount of fruit purchased is 96 ounces, which is equivalent to 6 pounds. Therefore, the total cost of the fruit should be 6 pounds x $3 per pound = $18.
The error the cashier made was converting ounces to pounds incorrectly. 96 ounces is equivalent to 6 pounds, not 1,536 pounds. The cashier multiplied 96 by 16 (the number of ounces in a pound) instead of dividing by 16 to get the number of pounds.
Can someone please help me
If tan(a) > 1 where could angle a be on the unit circle?
Option B is correct because the tangent of angle a is greater than 1 when a is between 0 and pi/4. Option G is correct because the tangent of angle a is also greater than 1 when a is between 3pi/4 and pi.
When tan(a) > 1, this means that the tangent of angle a is greater than the length of the adjacent side divided by the length of the opposite side in a right triangle. Since the adjacent and opposite sides of a unit circle have a length of 1, this means that the opposite side of angle a is less than 1.
To determine where angle a could be on the unit circle, we need to find the angles whose tangent is greater than 1. Since tangent is positive in the first and third quadrants, the angles we need to consider are in the first and third quadrants.
In the first quadrant, the angle whose tangent is 1 is pi/4, and the tangent increases as the angle increases. Therefore, angle a could be between 0 and pi/4 (option B).
In the third quadrant, the angle whose tangent is 1 is 5pi/4, and the tangent decreases as the angle increases. Therefore, angle a could also be between 3pi/4 and pi (option G).
Therefore, options B and G are correct, and angles a could be located in the regions described by these options on the unit circle.
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Clinton and Stacy decided to travel from their home near Austin, Texas, to Yellowstone National Park in their RV.
- The distance from their home to Yellowstone National Park is 1,701 miles.
- On average the RV gets 10.5 miles per gallon.
- On average the cost of a gallon of gasoline is $3.60.
Based on the average gas mileage of their RV and the average cost of gasoline, how much will Clinton and Stacy spend on gasoline for the round trip to Yellowstone National Park and back home?
A. $1,166.40
B. $2,480.63
C. $583.20
D. $64,297.80
this is the total cost for the round trip, the answer is (C) 583.20.
what is round trip ?
A round trip refers to a journey from a starting point to a destination and then back to the starting point. In other words, it involves traveling to a place and then returning to the original location.
In the given question,
To calculate the cost of gasoline for the round trip, we need to first find the total amount of gasoline they will use. We can calculate this by dividing the distance of the trip by the RV's average gas mileage:
Total gasoline used = distance ÷ gas mileage
Total gasoline used = 1,701 miles ÷ 10.5 miles per gallon
Total gasoline used = 162 gallons (rounded to the nearest whole number)
Now, we can find the total cost of gasoline by multiplying the total amount of gasoline used by the average cost of a gallon of gasoline:
Total cost of gasoline = total gasoline used × cost per gallon
Total cost of gasoline = 162 gallons × 3.60 per gallon
Total cost of gasoline = 583.20
Since this is the total cost for the round trip, the answer is (C) 583.20.
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A circle has a diameter whose end points are at (-3, -1) and (7, 7). What is the equation of the circle?
Therefore, the equation of the circle in standard form is: (x - 2)² + (y - 3)² = 40.
What is the circle's general form equation?(xh)2+(yk)2=r2 is the equation of a circle in standard form. The radius is r units, and the centre is at (h,k). Mark points r units up, down, left, and right from the centre of the circle to graph it. Through these four points, draw a circle.
We must first determine the circle's centre and radius before we can determine its equation.
The circle's centre is defined as the point on a line segment that connects the diameter's two endpoints. Taking the average of the x-coordinates and the average of the y-coordinates will get the midpoint:
Midpoint: ((-3+7)/2, (-1+7)/2) = (2, 3)
The distance formula can be used to determine that the circle's radius is equal to half of its diameter:
diameter = √((7-(-3))²+ (7-(-1))²) = √(160) = 4√(10)
radius = (1/2)diameter = 2sqrt(10)
So the center of the circle is (2, 3) and the radius is 2sqrt(10).
Consequently, the circle's standard form equation is as follows:
(x - 2)²+ (y-3)²= (2√(10))²
Simplifying:
(x - 2)²+(y-3)²=40
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1. If the gross domestic product of a country is significantly higher in one year than in another, what
might account for the difference
a. population growth
Ob.
b. greater available resources and technological advances
Oc. inflation
C.
Od. all of these
2. The Lorenz Curve for the United States indicates that the richest 20 percent of households have
what percentage of the nation's income
a. 20 percent
b. 3.8 percent
c. 90 percent
d. 46.8 percent
3. The economic condition most likely to be caused by a war affecting oil production in the
Mid East would be
a. demand-pull inflation
b. cost-push inflation
c. deflation
Od.
d. cost of living inflation
The difference is accounted for by d. all of these
The percentage of the nation is 46.8 percent
The economic condition most likely to be caused by a war affecting oil production in the Mid East would be cost-push inflation
How to answer the questionsThe accurate response is (d) all of these. An overflow in population can influence Gross Domestic Product (GDP) by enlarging the labor force, potentially promoting productivity and efficiency as well as heightening output through more accessible assets and advanced technology. Inflation might also affect GDP by escalating prices and reducing buying capability.
Therefore, the precise answer is (d) 46.8 percent. The Lorenz Curve is a pictorial rendering of income inequality and the Gini coefficient estimates the severity of disparity. According to fresh records, the most affluent 20 percent of households in the United States keep virtually 46.8 percent of the national income.
The economic state maybe instigated by a conflict impacting oil production in the Middle East would be (b) cost-push inflation. A disruption in the offering of petroleum may consequence in elevated construction costs for businesses, which could then pass on such augmented charges to customers via higher rates. This manner of inflation is referred to as cost-push inflation.
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After taxes, Jess takes home a salary of J = $5000 every month. She pays P percent of this to her rent and all her fixed bills each month, leaving her with K left. She spends half of K on groceries, leaving her with L left. If she spends 1331 of L on gifts and puts 2552 of L into her savings account, this would leave her with $200 for miscellaneous expenses. What is the value of P?
Using percentage, the correct answer is "The value of P is $3,500 and it corresponds to 70% of her salary".
Define percentage?The denominator of a percentage, also known as a ratio or a fraction, is always 100. For instance, Sam would have received 30 points out of a possible 100 if he had received a 30% on his maths test. In ratio form, it is expressed as 30:100, and in fraction form, as 30/100. Here, "percent" or "percentage" is used to translate the percentage symbol "%." The percent symbol can always be changed to a fraction or decimal equivalent by using the phrase "divided by 100".
First, we need to calculate L.
1/3 or 33.33% of L spend on gift.
2/5 or 40% of L spent on savings.
This would leave her with $200 for miscellaneous expenses:
= 100% - (33.33% + 40%)
= 100% - 73.33%
= 26.67%
So, 26.67% = $200 for miscellaneous expenses
Rule of three, to calculate L.
26.67% is $200.
100% will be:
= (100 X 200) ÷ 26.67
= 20000 ÷ 26.67
= $750
L= $750
Now we going to calculate K.
"K is twice the amount of L".
K = L X 2
K = 750 X 2
K= $1,500
Finally, we going to calculate P.
P = J - K
J = $5,000
K = $1,500
P =$5,000 - $1500
= $3,500
Rule of three
5000 is 100%
3500 will be:
= 3500 x 100 ÷ 5000
= 350000 ÷ 5000
P = 70%
The value of P is $3,500 and it corresponds to 70% of her salary.
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Please help due in 1 hour
Answer:
Answer is B. 3x^2 +2x - 2.5
Step-by-step explanation:
Just factor out and simplify.
[tex]\frac{0.25x^2*(3x^2+2x-2.5)}{0.25x^2}[/tex]
x cannot be 0 or else the denominator is 0 making the function undefined.
Answer:
it is B
Step-by-step explanation:
Which of the following is true to the degree of freedom
Its value is always one greater than the sample size.
In statistics, the degree of freedom represents the number of values in the final calculation of a statistic that is open to varying. In other terms, it is the number of distinct data points used to calculate a statistic.
The degree of freedom (df) for a sample data set is equal to the sample size minus one (df = n - 1), where 'n' represents the sample size. This means that the sample size is always one less than the degree of freedom.
The answer choices do not accurately depict the concept of the degree of freedom. The sum of all differences between the data values and the sample mean may not equal zero. The value of the degree of freedom does not always equal the sample size; rather, it is always one less than the sample size. Therefore, the correct statement is always that its value exceeds the sample size by one.
Although part of your question is missing, you might be referring to the full question:
Which of the following is true with regard to the degree of freedom?
The sum of all the differences between the data value and the sample mean can be any number
The sum of all the differences between the data value and the sample mean is always zero
Its value is always one more than the sample size
Its value is the same as the sample size
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Supplementary angles
Answer: ∠HDG
Step-by-step explanation:
Starting Angle: ∠HDE
Possible Supplement: ∠HDG
what is the leading coefficient of a third-degree function that has the output of -110 x=3 and has zeros of 14, I, -I
The leading coefficient of a third-degree function that has the output of -110 x=3 and has zeros of 14, I, -I is 10
How to find the leading coefficient of a third-degree functionIf a third-degree function has zeros 14, I, and -I, it can be factored as: f(x) = a(x - 14)(x - I)(x + I)
'a' denotes the leading coefficient.
We may use the knowledge that the function's output is -110 when x = 3 to calculate the value of 'a'.
Substituting x = 3 into the function's factored form yields:
f(3) = a(3 - 14)(3 - I)(3 + I) = -110
When we simplify this equation, we get:
a(-11)(3 - I)(3 + I) = -110
a(-11)(9 - I^2) = -110
a(-11)(9 + 1) = -110 (since I2 = -1)
a(-11)(10) = -110
-110a = -1100
a = 10
Hence , the third-degree function's leading coefficient is 10.
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Lin is tracking the progress of her plant's growth. Today the plant is
5 cm high. The plant grows 1.5 cm per day.
a. Write a linear model that represents the height of the plant after d
days.
(Equation)
b. What will the height of the plant be after 20 days?
Answer:
a. The linear model that represents the height of the plant after d days can be expressed as:
h(d) = 1.5d + 5
where h(d) is the height of the plant in centimeters after d days, and 1.5d represents the growth rate of 1.5 cm per day multiplied by the number of days (d). The constant term 5 represents the initial height of the plant, which is 5 cm.
b. To find the height of the plant after 20 days, we can substitute d = 20 into the linear model:
h(20) = 1.5(20) + 5
= 30 + 5
= 35
So, the height of the plant after 20 days will be 35 cm.
ines a and b are parallel and lines e and f are parallel.
Horizontal lines e and f are intersected by lines a and b. At the intersection of lines a and e, the uppercase left angle is 82 degrees, and the bottom left angle is 98 degrees. At the intersection of lines b and e, the bottom right angle is x degrees.
What is the value of x?
Given that lines a and b are parallel, lines e and f are parallel and the angles formed by their intersection is x at the intersection of lines b and e. The value of x is 82 degrees. So, the correct answer is B).
We are given that Lines a and b are parallel and Lines e and f are parallel. Horizontal lines e and f are intersected by lines a and b.
At the intersection of lines a and e, the upper left angle is 82 degrees, and the bottom left angle is 98 degrees.
We need to find the value of x, which is the bottom right angle at the intersection of lines b and e. Here are the steps to solve the problem:
Since lines a and b are parallel, the angle at the top left of the intersection between b and f is also 98 degrees. This is because alternate interior angles are congruent.
We know that the angle at the top left of the intersection between a and e is 82 degrees.
Therefore, the angle at the bottom left of the intersection between f and b is
angle at the bottom left of the intersection between f and b = 180 - (82 + 98) = 0
This means that line f and line b are collinear, and therefore, they do not intersect.
Since line e intersects both lines a and b, the angle at the bottom right of the intersection between b and e is 180 degrees (a straight line).
Therefore, x = 180 - the angle at the bottom left of the intersection between b and e, which is 98 degrees.
x= 180 - 98 = 82
Hence, x = 82 degrees.
So, the correct option is B).
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--The given question is incomplete, the complete question is given
" Lines a and b are parallel and lines e and f are parallel.
Horizontal lines e and f are intersected by lines a and b. At the intersection of lines a and e, the uppercase left angle is 82 degrees, and the bottom left angle is 98 degrees. At the intersection of lines b and e, the bottom right angle is x degrees.
What is the value of x?
8
82
98
172 "--
Determine the five-number summary for the data set. 20, 26, 18, 31, 22, 28, 30
The five-number summary for the given data set is 18, 22, 26, 30, 31.
What is five-number summary?The five-number summary is a set of descriptive statistics that provides information about a dataset by summarizing the data's five most important features. It includes the minimum data point, the first quartile, the median, the third quartile, and the maximum data point.
In order to calculate the five-number summary for the given data set (20, 26, 18, 31, 22, 28, 30), we first need to arrange the data in ascending order: 18, 20, 22, 26, 28, 30, 31.
The minimum data point is 18, the first quartile is 22, the median is 26, the third quartile is 30, and the maximum data point is 31.
So, the five-number summary for the given data set is 18, 22, 26, 30, 31.
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PQ
is tangent to OR at point P. Is each statement true for OR? Drag "true" or "false" below each statement.
R
50 °
P
40°
true
ST is tangent to OR at point 7.
mZRST=mZSRT
false
mZSTR=mZQPR
The answer to each statement are:
a. ST is tangent to circle R at point T - True
b. m<RST ≅ m<SRT - False
c. m<STR ≅ m<QPR - True
What is a tangent to a circle?A tangent is a straight line drawn in such a way that it intersects externally a point on the circumference of a circle. Thus it touches a circle externally at a point on its boundary.
Considering the diagram and information given in the question, given a circle with center R and tangents PQ, ST. It can be deduce that the statements that are true or false are:
i. ST is tangent to circle R at point T - True
ii. m<RST ≅ m<SRT - False
ii. m<STR ≅ m<QPR - True
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what is 999.09344471 rounded to the nearest square kilometer?
The nearest kilometers to 999.09344471 km is 1000 km.
Given value is 999.09344471 Km.
We have to calculate the round off value to the nearest kilometers. we know that after the decimal if the value of tenth place is 5 or bigger than 5 then we add 1 to the tens place digit, this is the fundamental rule of rounding off.
Now on following this rule from the very right hand side up to the tenth place digit we come to the conclusion that only the value after the decimal (934) is to be rounded off which is (900).
So 999.09344471 km is finally becomes 999.900 km after rounding of to nearest hundredth value.
Again rounding off 999.900 km to nearest km so it becomes 1000 km.
The nearest kilometers to 999.09344471 km is 1000 km.
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Graph the solution to the inequality |2x + 2) > 6.
The solution to the inequality is all the values of x that are either greater than 2 or less than -4. The required graph of inequality is given below.
What is Inequality :In mathematics, an inequality is a statement that compares two values, often using the symbols "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "≠" (not equal to).
Inequality graphs show the region of the coordinate plane that satisfies an inequality. The graph of inequality can be determined in a similar way to the graph of an equation, but with some additional steps.
Here we have
The inequality |2x + 2| > 6
To graph the solution to the inequality |2x + 2| > 6,
we can start by rewriting the inequality as two separate inequalities without the absolute value:
2x + 2 > 6 or 2x + 2 < -6
Simplifying these inequalities, we get:
2x > 4 or 2x < -8
x > 2 or x < -4
Therefore,
The solution to the inequality is all the values of x that are either greater than 2 or less than -4. The required graph of inequality is given below.
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