Answer:
8
Step-by-step explanation:
since martha counted 10/20 had brown eyes thats about 50 percent, simple ratios 10/20= ×/16 you get 8martha conto 10 de 20 personas con ojos cafes, eso quiere decir que 50 por ciento de los contados tenien ojos cafès, 50 porciento de 16 es 8
in a class there are 8 students who play football and cricket, 4 students who do not play football or cricket,14 students who play football and 20 students who play cricket
find the probability that a student chosen at random plays football or cricket or both
The probability to that the student chosen plays football or cricket or both is;
What is the probability that the chosen student play at least one of football and cricket?To evaluate the required probability, one must determine the total number of students in the class as follows;
Total number of students = 4 + 8 + (14-8) + (20-8) = 30.
Hence, the required probability is; (30-4)/30 = 26/30 = 13/15.
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The regular price of a CN Tower Souvenir was $32, During its sale, The price was reduced down by $24, Find the percent discount
Answer:
Discount of 25%
Step-by-step explanation:
To find the percent discount, subtract the big number minus small number then divide by the original number.
[tex]\frac{32-24}{32}[/tex]
[tex]\frac{8}{32} \\[/tex]
Reduce
[tex]\frac{1}{4}[/tex]
Change to a decimal by dividing
1/4 = 0.25
Change to a percent by moving the decimal two places right.
0.25 -----> 25%
please help me with thiss
Answer:
the fourth option is correct
Step-by-step explanation:
the first equation represents that the cost of 6 bananas is the same as the cost of nine apples. therefore, y is the cost of a single banana and x is the cost of a single apple. the second equation represents the situation of you buying 4 bananas and 2 apples for $8. If x and y represent the cost of each fruit, then the point (x,y) = (1,1.5) means that x, the cost of an apple, is $1.00 and that y, the cost of a banana, is $1.50.
Write the numbers in each circle that is described by the attribute written outside the circle. Numbers in the overlapping regions must meet the requirements of each circle. Justify why you placed the numbers in the overlapping regions.
The attached image represents the completed Venn diagrams
How to complete the circles?Diagram 1
We have:
Multiples of 3 and Multiples of 10
When the sets are populated, we have:
Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Multiples of 10 = 10, 20, 30
Both = 30
Next, we complete the circles using the above data values
See attachment 1
Diagram 2
We have:
Multiples of 2, Multiples of 3 and Multiples of 5
When the sets are populated, we have:
Multiples of 2 = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Multiples of 5 = 5, 10, 15, 20, 25, 30
Multiples of 2 and 3 = 6, 12, 18, 24 and 30
Multiples of 2 and 5 = 10, 20 and 30
Multiples of 3 and 5 = 15 and 30
All = 30
Next, we complete the circles using the above data values
See attachment 2
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Arianna invests $5600 in a new savings account which earns 5.4% annual interest, compounded quarterly. What will be the value of her investment after 8 years? Round to the nearest cent.
The value of her investment after 8 years is $8,293.81.
What do interest rates mean?
An interest rate tells you how high the cost of borrowing is, or high the rewards are for saving.
Given:
P= $5600
r= 5.4%
t= 8 years
Then solve the equation for A
A = P(1 + r/n)^nt
A = 5,400.00[tex](1 + 0.054/4)^{4/8}[/tex]
A = 5,400.00[tex](1 + 0.0135)^{32}[/tex]
A = $8,293.81
Hence, the value will be $8,293.81.
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What is the maximum probability of committing a Type I error that the researcher is willing to commit? a. Critical values b. p-value c. Level of Significance d. Confidence level
Answer: c. Level of Significance
This is the alpha value
alpha is a greek letter with the symbol [tex]\alpha[/tex]
A type 1 error is when the researcher rejects the null, but the null was true (meaning the researcher shouldn't have rejected the null).
The Niagara Falls ferris wheel has a diameter of 48 meters, and one revolution takes 2.25 minutes to complete. Riders can see Niagara falls if they are higher than 41 meters above the ground. What are the time intervals when the rider can see Niagara Falls if they complete 3 complete revolutions, if the rider gets on at a height of 0.5 m at t=0 min?
The time intervals when the riders could see Niagara falls are; 0.834 < t < 1.416 and (3.084, 3.666)
How to interpret Cycle Graphs?
From the diagram attached, we can say that;
Period = 2π/k
where;
k = 2π/2.25
k = 8π/9
Thus;
h(t) = -(48/2) cos (8π/9)t + ((48/2) + 0.5)
h(t) = -24cos (8π/9)t + 24.5
Riders can see Niagara falls if they are higher than 41 meters above the ground. Thus;
41 = -24cos (8π/9)t + 24.5
41 - 24.5 = -24cos (8π/9)t
16.5 = -24cos (8π/9)t
-0.6875 = cos (8π/9)t
cos⁻¹0.6875 = (8π/9)t
t = 0.834 min
Thus, time interval is between;
0.834 < t < (2.25 - 0.834)
⇒ 0.834 < t < 1.416 and
(2.25 + 0.834) < t < (2.25 + 1.416)
⇒ (3.084, 3.666)
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Please solve (21 points)
Answer:
he width of the ravin is 47
Find the inverse
[tex]f(x)={e}^{3x - 1} [/tex]
Tank you for your support
Answer:
[tex]f^{-1}(x)=\dfrac{1}{3}(\ln x +1)[/tex]
Step-by-step explanation:
Given function:
[tex]f(x)=e^{3x-1}[/tex]
Replace f(x) with y:
[tex]\implies y=e^{3x-1}[/tex]
Take natural logs of both sides:
[tex]\implies \ln y = \ln e^{3x-1}[/tex]
Apply the Power Log Law [tex]\ln x^n=n\ln x[/tex] :
[tex]\implies \ln y = (3x-1)\ln e[/tex]
As [tex]\ln e=1[/tex] then:
[tex]\implies \ln y = 3x-1[/tex]
Rearrange to make x the subject:
[tex]\implies 3x=\ln y +1[/tex]
[tex]\implies x=\dfrac{1}{3}(\ln y +1)[/tex]
Swap x for [tex]f^{-1}(x)[/tex] and y for x:
[tex]\implies f^{-1}(x)=\dfrac{1}{3}(\ln x +1)[/tex]
It takes Kenesha 45 minutes to prepare 20 greeting cards. It takes Paula 30 minutes to prepare the same number of cards. Working together at this rate, how long will it take them to prepare the cards?
Using the together rate, it is found that it will take them 18 minutes to prepare the cards working together.
What is the together rate?The together rate is the sum of each separate rate.
In this problem:
The together rate is of 1/x.Kenesha's rate is of 1/45.Paula's rate is of 1/30.Hence, the time it will take for them to make the cards is given by:
[tex]\frac{1}{x} = \frac{1}{45} + \frac{1}{30}[/tex]
[tex]\frac{1}{x} = \frac{5}{90}[/tex]
5x = 90
x = 18 minutes.
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Which statements are true about the dollhouses? Select three options.
The space inside dollhouse 1 can be found using the equation V = 6 (6) (5) + one-half (6) (6) (4).
The space inside dollhouse 1 can be found using the equation V = 6 (6) (5) + one-third (6) (6) (4).
The space inside dollhouse 2 can be found using the equation V = 6 (6) (5) + one-half (6) (6) (4).
The space inside dollhouse 2 can be found using the equation V = 6 (6) (5) + one-third (6) (6) (4).
The space inside dollhouse 1 is 24 inches cubed greater than the space inside dollhouse 2.
The statements that are true about the dollhouses is: 1,4,5.
True statement about dollhouseThe space inside dollhouse 1 can be found using the equation V = 6 (6) (5) + one-half (6) (6) (4).
Space inside dollhouse 1:
V = 6 (6) (5) + 1/2 (6) (6) (4)
V=180+72
V=252 inches
The space inside dollhouse 2 can be found using the equation
V = 6 (6) (5) + 1/3 (6) (6) (4)
V=180+48
V=228
The space inside dollhouse 1 is 24 inches cubed greater than the space inside dollhouse 2.
V1=252
V2=228
Hence:
252-228=24 inches cubed
V1 ≥V2
Therefore the statements that are true about the dollhouses is: 1,4,5.
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SO CONFUSED PLEASE SOMEONE EXPLAIN! DUE SOON AND NEED HELP!!!!!!!! QUESTION IN PICTURE BELOW
Answer:
=> Apply law of cosine
[tex]c^2=a^2+b^2-2abcos\left(C\right)[/tex]
=> input value
[tex]z^2=6.5^2 + 9.4^2-\left(6.5\right)\left(9.4\right)\left(cos\left(131\right)\right)[/tex]
=> simplify
[tex]z=\sqrt{\left(6.5^2+\:9.4^2\right)-\left(6.5\right)\left(9.4\right)\left(-0.65605902899\right)}[/tex]
=> calulcation
[tex]z=\sqrt{-61.1\cos \left(131^{\circ \:}\right)+130.61},\:z=-\sqrt{-61.1\cos \left(131^{\circ \:}\right)+130.61}[/tex]
=> apply rule: Distance must be greater than 0
which is about 14.51828
please help 35 points!!
Answer:
67m²
Step-by-step explanation:
12m + 6m + 4m + 36 m 8m = 67m²
If events A and B are independent, and the probability that event A occurs is 83%, what must be true?
The probability that event B occurs is 17%.
The probability that event B occurs is 83%.
The probability that event A occurs, given that event B occurs, is 83%.
The probability that event B occurs, given that event A occurs, is 83%.
Answer:
c
Step-by-step explanation:
edge 2023
The probability that event B occurs is 83%. Therefore, option C is the correct answer.
What is the independent variable?Dependent and independent variables are variables in mathematical modeling, statistical modeling and experimental sciences. Dependent variables receive this name because, in an experiment, their values are studied under the supposition or demand that they depend, by some law or rule, on the values of other variables.
Given that, events A and B are independent, and the probability that event A occurs is 83%.
If the outcome of one event has no bearing on the fate of the other, the two events are said to be independent events. Instead, we may say that an event is considered independent if it does not affect the likelihood of another event.
Since, the events A and B are independent, if the probability that event A occurs is 83%.
Then, the probability that event B occurs is 83%.
Therefore, option C is the correct answer.
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Uhm it's confusing somehow mind helping?
Answer:
yo can maybe try converting those to every possible answer and you can find the answer that way.
Step-by-step explanation:
A number multiplied by third of itself makes the product 10584, what is the number ?
Answer:
-15876
Step-by-step explanation:
|correct me if I'm not correct|
(Hope it's Help)
[keep safe]
The number is 15876
What is Number system?Number systems are systems in mathematics that are used to express numbers in various forms and are understood by computers. A number is a mathematical value used for counting and measuring objects, and for performing arithmetic calculations. Numbers have various categories like natural numbers, whole numbers, rational and irrational numbers, and so on. Similarly, there are various types of number systems that have different properties, like the binary number system, the octal number system, the decimal number system, and the hexadecimal number system.
What are Number Systems?A number system is a system representing numbers. It is also called the system of numeration and it defines a set of values to represent a quantity. These numbers are used as digits and the most common ones are 0 and 1, that are used to represent binary numbers. Digits from 0 to 9 are used to represent other types of number systems.
Given number:
10584
So, the number multiplied by the third of itself
x* 2/3 = 10584
x= 10584* 3/2
x= 15876
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enter the ordered pair that is the solution to the system of equations graphed below. y= -4x+2 y=x-3
Answer:
Step-by-step explanation:
-4x + 2 = x - 3
-5x + 2 = -3
-5x = -5
x = 1
y = 1 - 3
y = -2
(1, -2)
Write the prime for factorization of 4
Answer:
2×2 mark me brainlist
4divided by 22×2A tower that is 125 feet tall casts a shadow 173 feet long find the angle of elevation of the sun to the nearest degree
Applying the tangent ratio, the angle of elevation of the sun, to the nearest degree, is: 36°.
What is the Tangent Ratio?In a right triangle, tan ∅ = opposite length / adjacent length is the tangent ratio.
Given the following:
Angle of elevation = ∅ Opposite length = 125 ftAdjacent length = 172 ftApply the tangent ratio:
tan ∅ = 125/172
tan ∅ = 125/172
∅ = tan^(-1)(125/172)
∅ ≈ 36°
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27 As shown in the diagram below, secants PWR and PTS are drawn to circle O from external point P.
12/
O.
W
T
P5
If m/RPS = 35°and mRS = 121°, determine and state mWT.
By applying the Theorem of Intersecting Secant, the measure of angle WT is equal to 51°.
How to determine angle m<WT?By critically observing the geometric shapes shown in the image attached below, we can deduce that they obey the Theorem of Intersecting Secants.
What is the Theorem of Intersecting Secants?The Theorem of Intersecting Secants states that when two (2) lines intersect outside a circle, the measure of the angle formed by these lines is equal to one-half (½) of the difference of the two (2) arcs it intercepts.
By applying the Theorem of Intersecting Secant, angle P will be given by this formula:
m<P = ½ × (m<RS - m<WT)
Substituting the given parameters into the formula, we have;
35 = ½ × (121 - m<WT)
70 = 121 - m<WT
m<WT = 121 - 70
m<WT = 51°.
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maria has 2 5/6 yard of fabric Jessica has 3 1/6 yards of fabric how much do they have altogether
Answer:
Step-by-step explanation:
1 + 3 + 5 + A+9 divide by 5
Answer:
1 + 3 + 5 + A+9 divide by 5
Step-by-step explanation:
the zeros of the function f(x) = x² + 5x - 6 are show your work
Answer:
x = - 6 , x = 1
Step-by-step explanation:
to find the zeros let f(x) = 0 , that is
x² + 5x - 6 = 0
consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term ( + 5)
the factors are + 6 and - 1 , since
6 × - 1 = - 6 and 6 - 1 = + 5 , then
(x + 6)(x - 1) = 0 ← in factored form
equate each factor to zero and solve for x
x + 6 = 0 ⇒ x = - 6
x - 1 = 0 ⇒ x = 1
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
3^5
Step-by-step explanation:
exponents:
1 - ( - 4 ) = 5
Therefore,
3^5
A prism has three times the volume of a pyramid with the same base and altitude.
O
A. True
O
B. False
Answer:
I believe it's true. Good Luck! :)
Step-by-step explanation:
Help please!
Select the correct answer.
A total of 388 tickets were sold for the school play they were either adult tickets or student tickets the number of student tickets sold was three times the number of adult tickets sold how many adult tickets were sold
Answer:
97
Step-by-step explanation:
Number of adult tickets = a.
Number of student tickets = s.
"A total of 388 tickets were sold"
a + s = 388
"the number of student tickets sold was three times the number of adult tickets sold"
s = 3a
a + s = 388
s = 3a
Substitute s in the first equation with 3a.
a + 3a = 388
4a = 388
a = 97
Answer: 97 tickets
Buying rental property is an investment option that carries a higher risk than some other options. However, the returns can be good. Assume you have purchased a single-
family home that you intend to rent for $850 per month. You will have the following expenses:
Monthly mortgage $390
Monthly insurance $70
Semi annual property taxes $380
Repairs (yearly estimate) $500
Monthly lawn care or snow removal $125
The total yearly expenses for the rental property will be_____.00.
Based on the expenses involved in running the property, and the rental amount, the return on the investment would be 18.82%.
What is the return on investment?The ratio of net income to investment is known as return on investment (ROI). A high return on investment (ROI) indicates that the investment's benefits outweigh its cost.
ROI is a performance indicator that is used to assess an investment's effectiveness or to compare the efficiencies of several distinct investments.
First, find the amount earned per year:
= 850 x 12
= $10,200
The yearly expenses would be:
= (390 x 12) + (70 x 12) + (380 x 2) + 500 + (125 x 12)
= 4,680 + 840+ 760+ 500 + 1500
= $8280
The annual ROI is:
ROI= (10,200 - 8280) / 10,200 x 100%
ROI = 18.82%
Therefore the expenses involved in running the property, and the rental amount, the return on the investment would be 18.82%.
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solve for b
−9b)+b=2b−(b+1)
Answer:
[tex]b = \frac{1}{9}[/tex]
Step-by-step explanation:
-9b + b = 2b - (b + 1)
Let's simplify by taking out the parenthesis.
-9b + b = 2b - b - 1
Now, we add like terms.
-8b = b - 1
Now, let's subtract b from both sides of the equal sign in order to isolate b.
-8b - b = b - 1 - b
Simplify!
-9b = -1
Divide both sides by -9.
-9b ÷ b = -1 ÷ -9
Simplify.
[tex]b = \frac{1}{9}[/tex]
Answer:
[tex]b = \frac{1}{9} [/tex]
Step-by-step explanation:
[tex] - 9b + b = 2b - (b + 1) [/tex]
Solve the brackets.
[tex] - 9b + b = 2b - b - 1[/tex]
Combine like terms.
[tex] - 8b = b - 1[/tex]
Take b to the left side.
[tex] - 8b - b = - 1[/tex]
Combine like terms.
[tex] - 9b = - 1[/tex]
Divide both sides by -9.
[tex] \frac{ - 9b}{ - 9} = \frac{ - 1}{ - 9} \\ b = \frac{1}{9} [/tex]
find the 44th term in the following arithmetic sequence
2,3,4,5,....
Answer:
the answer is 45
Step-by-step explanation:
the answer is 384
Step-by-step explanation:
a1 = 2, a2 = 3, a3 = 4,
an = ?
n = 44
d = a2 - a1 = 3 - 2 = 1
d = a3 - a2 = 4 - 3 = 1
Here, the common difference is the same everywhere
So,
[tex] a_{n} = a + (n - 1) \times d[/tex]
[tex]a_{44} = 2 + (44 - 1) \times 1[/tex]
[tex]a_{44} = 2 + 43[/tex]
[tex]a_{44} = 45[/tex]