ABC~A'B'C'. Their scale factor is 7:9. If the perimeter of smaller ABC is 42, then the
perimeter of A'B'C' is.

Pls hurry!!

Answers

Answer 1

Answer:

54

Step-by-step explanation:

ratio is 7:9

7=42

9=?

9×42÷7


Related Questions

Complete this table so it shows a relation that is not a function.
X
2
-4
-3
y
3
1
7
-5

Answers

If we remove the ordered pair in Table 1 and either the value of (3,7) or (3,-2) we have the relation as a function.

what is function ?

Mathematics encompasses the study of numbers, formulas and related structures, shapes and the spaces in which they exist, quantities and their variations, and spaces in which they exist. A function is an association between a set of inputs, each of which has an output. Simply described, a function is a relationship between inputs and outputs, where each input results in a single, distinct output. Each function has a domain and a codomain, often known as a scope. Typically, the letter f is used to denote functions (x). is the input. There are four different categories of functions. based on one-to-one functions, many-to-one functions, on functions, within functions, and one-to-one functions.

given

Table 1:  

x 0 -4 3 -2 9 3

y 5 8 7 8 5 -2

No, Table 1 is not a function.

Since there are two images of element '3'.

i.e. 3 is mapped to 7 and -2.

Table 2:

x 2 -7 5 1 -6 3

y 5 8 -6 8 5 7

Yes, this relation is a function.

Because corresponding to each x there is a single image.

If we remove the ordered pair in Table 1 and either the value of (3,7) or (3,-2) we have the relation as a function.

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NEED HELP 25 POINTS !
A special 8-sided die is marked with the numbers 1 to 8. It is rolled 15 times with the results shown in the table.

Results 3 4 5 2 7 1 3 7 2 6 2 1 7 3 6
The experimental probability of rolling an odd number is
%, which is
% more than the theoretical probability.

Answers

Answer:

Step-by-step explanation:

Of the twenty times in this experiment the following are prime (3,5,2,7,3,7,2,2,7,3,3,5) or 12 of the twenty

12/20 = 6/10  = 60%

So 60% is the experimental probabilty.

The theoretical probability given that there are four prime numbers (2,3,5,7) out of 8 on the dice should be 50%  because 1/2 of the numbers are prime.

The experimental probability is 10% more than the theoretical probability

60% - 50% = 10%

Answer:

60%,  10%

Step-by-step explanation:

Plato/Edmentum

What is the value of 6(2b-4) when b=5?

Answers

[tex]6(2b - 4)[/tex]

Expanding the terms,

[tex](6 \times 2b) - (6 \times 4) \\ = 12b - 24[/tex]

Plugging in our value b,

[tex]b = 5 \\ 12b - 24 = 12(5) - 24 = 36[/tex]

So the answer is,

[tex]36[/tex]

Answer:

Given expression:  6(2b - 4)

To find the value of 6(2b - 4) at b= 5, we need to substitute the b=5 in the expression, we get

6(2(5) - 4)

= 6(10 - 4)…[solve parentheses]

= 6(6)

6 * 6 = 36

=> 6(2(5) - 4) = 36

Therefore, the value of 6(2b - 4) is 36, when b=5.

Please help will mark Brainly

Answers

Answer: A) solution is 1

Step-by-step explanation:

Guybrush owns an island monkey preserve which has a length of 2x + 1 units and a width of x – 4 units. If the island is 1,586 square units in size, what are the dimensions of the island? A. 30 units by 30 units B. 30 units by 26.5 units C. 13 units by 122 units D. 61 units by 26 units

Answers

Answer:

d

Step-by-step explanation:

61-1/2=30

30-4=26

suppose you have a credit card debt of $6000. Last month, the bank charged you $55 interest on the debt. The solution to the equation 55= 6000/12 * r represents the annual interest rate in the credit card, r. Find the annual interest rate on the credit card

Answers

Answer: The formula for the interest charged on a credit card debt is:

Interest = (Principal * Annual Interest Rate) / 12

We know that the interest charged last month is $55, and the principal (the credit card debt) is $6000, so we can substitute these values into the formula and solve for the annual interest rate:

55 = (6000 * r) / 12

To find the annual interest rate, we will solve for r.

r = (55 * 12) / 6000

r = 0.09 which is a 9% annual interest rate.

So, the annual interest rate on the credit card is 9%.

Step-by-step explanation:

1.2/4=x/28 what is the value of x

Answers

Answer:

  8.4

Step-by-step explanation:

You want to know the value of x that satisfies 1.2/4 = x/28.

One-step equation

The equation ...

  x/28 = 1.2/4

can be solved in one step by multiplying by 28.

  x = 28(1.2/4) = 8.4

The value of x is 8.4.

__

Additional comment

The fraction involving x can be cleared by multiplying by its denominator, effectively the inverse of the coefficient of x. This is the same way you solve any similar one-step equation.

Often, you are told to "cross-multiply" a proportion. Doing that gives you ...

  4·x = 28·1.2

Then you have to divide by 4 (multiply by the inverse of the coefficient of x) to find the value of x:

  x = 28·1.2/4 . . . . same as above.

That is, there is no need to multiply by 4, and then divide by 4. You can simply multiply by 28 and be done.

Answer:

8.4

Step-by-step explanation:

[tex]\frac{1.2}{4}[/tex] = [tex]\frac{x}{28}[/tex]

cross multiply to solve for x:

(1.2)(28) = 4x

4x = 33.6

x = 33.6/4 = 8.4

95 POINTS!!! To increase business, the owner of a shoe store is running a promotion in which a customer's bill can be selected at random to receive a discount. When a customer's bill is printed, a program in the cash register determines randomly whether the customer will receive a discount on the bill. The program was written to generate a discount with a probability of 0.15; that is, 15% of the bills get a discount in the long run. However, the owner is concerned the program is incorrect and is not generating the intended long-run proportion of 0.15.

The owner selects a random sample of bills and finds that only 12% of them received a discount. A confidence interval for p, the proportion of bills that will receive a discount in the long run, is 0.12 ± 0.05, and all conditions for inference are met.

Consider the confidence interval 0.12 ± 0.05.

Part A: Does the confidence interval provide convincing statistical evidence that the program is not working as intended? Justify your answer. (3 points)

Part B: Does the confidence interval provide convincing statistical evidence that the program generates the discount with a probability of 0.15? Justify your answer. (2 points)

Part C: A second random sample of bills is taken that is six times the size of the original sample. In the second sample, 12% of the bills received the discount. Determine the value of the margin of error based on the second sample of bills used to compute an interval for p with the same confidence level as that of the original interval. (2 points)

Part D: Based on the margin of error in part C that was obtained from the second sample, is the program working as intended? Justify your answer.

Answers

The statement is not valid.the statement is valid.The margin of error when the sample size if 6-fold is 0.020. The program is NOT working as intended.

What is a confidence interval?

An area surrounding a measurement that indicates how accurate it is called a confidence interval.

Let X = The proportion of n randomly selected consumers who receive the discount. So, X = B(n, p), where p is the likelihood that a consumer will receive the discount.

Back-up Theory 100(1 - α) % Confidence Interval for the population proportion, p is:

p ± Zα/2[√{P(1 –p)/n}] ……(1)

where

Zα/2 is the upper (α/2)% point of N(0, 1),

pcap = sample proportion, and

n = sample size.

One can conclude with 100(1 - )% confidence that the population proportion, p, is p if a 100(1 - )% Confidence Interval for p holds a specific hypothesized value of p…………. (2)

Now to work out the solution,

The given confidence interval is: 0.12 ± 0.05 i.e., [0.07, 0.17] or [7%, 17%]……………………. (3)

for Part (a)

equation (2) and (3), [7%, 17%] holds 15%. Hence the statement is NOT valid.

for Part (b)

equation(2) and (3), [7%, 17%] holds 15%. Hence the statement is valid.

For Part (c)

Margin of error is: Zα/2[√{P(1 –P)/n}]

If the sample sizes under Part (c) and (a) are respectively, n2 and n1, the ratio of respective margin of errors would be

[Zα/2.√t{P(1 –P)/n2}]/[Zα/2√{P(1 –P)/n1}]

= √(n1/n2)

= 1/√6 [given the second sample size is 6 times the first sample size]

= 0.4082

= > the margin of error under Part (c) = the margin of error under Part (c) x 0.4082

= 0.05 x 0.4082

= 0.020.

Thus, the margin of error when the sample size if 6-fold is 0.020.

For Part (d)

The revised Confidence Interval from Part (c) is 0.12 ± 0.02 or [0.10, 0.14], which does not hold 0.15 as a result, according to (2), the program is NOT operating as anticipated.

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Can y’all help me on question 19?!

Answers

Answer: 178.31

Step-by-step explanation: subtract 574.54 by 396.23

This is the answer right here

Select the correct answer from each drop-down menu. A bag contains one green ball, one yellow ball, one red ball, and one blue ball. Jerome picks a ball from the bag, replaces it, and then picks another ball. The sample space for this situation is listed. Fill in the missing values in the list.

G-Y Y-Y R-__ B-Y
G-__Y-R R-R B-R
G-B Y-__ R-B B-B
G-G Y-G R-G B-__

Answers

Answer:Y, R, B, G

Step-by-step explanation:

Order matters since the ball is being replaced each time. This is all the possible combinations to take 2 balls with replacement, so you can look at the list and see that RR, RB, and RG are listed. The only other combination when choosing a red first would be to pick a yellow, so RY. This is the same pattern for the others also. Look at the list and see what combinations are already listed.

This is the correct answer;

Please leave a Thanks!

It helps!

What add up to -3 and multiples to -70

Answers

We add  (x +7 ) (x - 10) up to -3 and multiply to -70.

What is a quadratic equation?

Any equation in algebra that can be written in the standard form where x denotes an unknown value and a, b, and c denote known numbers, where a 0 is a quadratic equation.

Here,

We illustrate and prove that -9 and 10 multiply to -90 and add up to 1:

7 × -10 = -70

-10 + 7 = -3

We are trying to determine how to factor the following quadratic equation.

x²  -3 x - 70 = 0

If so, the solution to factor the quadratic equation above is:

(x +7 ) (x - 10)

To summarize, -10 and 7 multiplied by -70 and add up to -3, you know that the following is true:

x² -3x - 70

= (x +7 ) (x - 10)

Hence, we add  (x +7 ) (x - 10) up to -3 and multiply by -70.

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pls help me will mark brainliest

Answers

Answer:

34.84

Step-by-step explanation:

5.2 times 6.7= 34.84

34.84 blah blah blah blah blah (sorry the answer is 34.84 i just had to answer a question:))

which of the following best describes the graph below

Answers

Option A) In the graph for each value of x there is exactly one value of y

So the function is  a One to One function.

What is a function?

A function is a procedure or a relation that links each element of a non-empty set A, at least one element of another non-empty set B, to another element of the first non-empty set A. In mathematics, a relation f between two sets, A and B, is referred to as the function's domain and co-domain. For all values of a and b, f = (a,b)|

A function f is said to be injective if it maps different items in its domain to other elements; for example, f = f implies x1 = x2. Alternatively, every element of the function's codomain is at most one of its domain's elements.

If some function output value corresponds to more than one input value, the function is said to be many-to-one (sometimes written as "many-one"). If the domain of f contains two different values a and b such that f(a)=f, the function f is many-to-one in symbols (b).

In the graph for each value of x there is exactly one value of y

So the function is  a One to One function.

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The length of a rectangle is 4 feet more than twice the width. The perimeter is 116. Find the dimensions of the rectangle

Answers

The dimensions of the rectangle are 40 and 18 units respectively

What is the area and perimeter of the rectangle?

The formula for area is equal to the product of the length and breadth of the rectangle. Whereas when we speak about the perimeter of a rectangle, it is equal to the sum of all its four sides.

Given here: The length of a rectangle is 4 feet more than twice the width.

Then let the width be x then length is equal to 2x+4 and therefore the perimeter is 2(2x+4+x)=116

                       3x+4      = 58

                             3x    = 54

                               x     = 18

Hence, the dimensions of the rectangle are 40 and 18 units respectively.

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The circle graph shows how a family budgets its annual income. If the total annual income is $100,000, what amount is budgeted for Clothing?

Answers

Answer:

where is the circle graph

Explain why the figure is a parallelogram…. Please I need help ASAP.

Answers

Answer:

In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

Step-by-step explanation:

SOMEONE PLEASE HELPPP

Answers

The values of the [tex]\bar x[/tex] (x-bar) (the mean) and the median of the dataset in the question are;

[tex]\bar {x}[/tex] ≈ 13.05

Median = 13.60

What is the mean and median of a dataset?

The mean and the median are descriptive statistical values that provides a description of the data that can be found in the dataset.

The mean is the average value of the data in the dataset, and the median is the middle value of the set of data arranged in an order of increasing values.

The mean is the average value of the set of data which is obtained by dividing the sum of the data points by the number of the datapoints, we get;

The number of data points = 28

The sum of the data is;  (4.7 + 12.6 + 3.6 + 16.1 + 2.3 + 28.2 + 2.2 + 16.9 + 10.7 + 19.5 + 11.4 + 27.9 + 11 + 15 + 4.2 + 15.8 + 15.9 + 17.3 + 24.9 + 10.8 + 16.4 + 7.3 + 3.2 + 14.6 + 2.6 + 8.4 + 21.2 + 20.8) = 365.5

The average is the mean is therefore; [tex]\bar x[/tex] = 365.5 ÷ 28 ≈ 13.05

The median is the value of the number in the middle when the numbers are arranged in increasing order as follows;

2.2, 2.3, 2.6, 3.2, 3.6, 4.2, 4.7, 7.3, 8.4, 10.7, 10.8, 11, 11.4, 12.6, 14.6, 15, 15.8, 15.9, 16.1, 16.4, 16.9, 17.3, 19.5, 20.8, 21.2, 24.9, 27.9, 28.2

The numbers at the middle of the set of numbers are 14th and 15th numbers, which are 12.6 and 14.6, which indicates that the median is the average of the two numbers, which is therefore;

Median = (12.6 + 14.6)/2 = 13.60

The median is 13.60

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An art museum opens at 9 am and closed at 5 pm the function V gives the number of visitors in a museum h hours after it opens explain what this statement tells us about the situation: V(5)=36

Answers

Answer:

Five hours after the museum opens, there are 36 visitors.

Step-by-step explanation:

V(5)=36 means that when h is 5, V is 36. Assuming this is a function from what information this gives.

A square pryamid have a total surface area of 1,477,500ft² and need to find the slant length. The length is 750ft. Find the slant length.

A.) 610in
B.) 610ft
C.) 3,050ft
D.) 3,050in

Answers

To find the slant length of the pyramid, you can use the formula for the surface area of a square pyramid:

Surface area = base area + 4 * (base side length * slant height)

In this case, the surface area of the pyramid is 1,477,500ft², the base area is 750ft * 750ft = 562,500ft², and the base side length is 750ft. Substituting these values into the formula gives:

1,477,500ft² = 562,500ft² + 4 * (750ft * slant height)

Solving for slant height gives:

slant height = (1,477,500ft² - 562,500ft²) / (4 * 750ft)
= 915,000ft² / 3,000ft
= 305ft

So, the slant length is 305ft. The correct answer is therefore C) 3,050ft.
Easy

A normal distribution of scores has a standard deviation of 10. Find the z-scores
corresponding to each of the following values:

Answers

Answer:

Yes

Step-by-step explanation:

6 cm
To the nearest cubic centimeter, what is the volume of the regular
hexagonal prism?
17 cm
5.2 cm
The volume of the regular hexagonal prism is about cm3.

Answers

Answer:

1,590.02

just round it to the nearest centimeter

Step-by-step explanation:

What the first person said and have a good night

ln cos2y + xy + 5x² = 5, find dy/dx. HELP PLEASE!!!

Answers

In order of steps
(1/cos2y)(-sin2y)(2dy/dx) +dy/dx + 10x= 0
Pull out dy/dx
Dy/dx[(-2sin2y/cos2y)+1] =-10x
Get dy/dx by itself
Dy/dx=-10x/[-2tan2y+1]

I THINK
I just finished calc 2 but i think by process is correct

Which equation is equivalent to 16^2p=32^p+3?

Answers

Answer:

C. 2^8p=2^5p+15

:D

pls help I have a hundred points for someone who answers

Answers

957÷3=319 this divide answer i hope help you

A random sample of 250 campers at a summer camp were surveyed to see what water activities they were most interested in participating in. The study found that 110 campers were not interested in paddleboarding. The study also showed that 64 of the campers who were interested in paddleboarding were also interested in waterskiing and 90 of the students were not interested in waterskiing. Based on the given information, which of the following relative frequency tables summarizes the data?

Answers

The relative frequency table that summarizes the data is given by the image at the end of the answer.

What is Relative frequency?

The number of desired experiment results divided by the total number of experiment results is used to compute the relative frequency of an event in an experiment.

Given:

The percentage of people interested in waterskiing

= 90/250 x 100

= 36%.

Thus, the percentage of people that was not interested in waterskiing is

=100-36

= 64%

Now, the percentages related to paddle boarding are :

Yes: 72/250 = 28.8%.

No: 18/250 = 7.2%.

Of those not interested in waterskiing, the percentages related to paddle boarding are

Yes: 112/250 = 44.8%.

No: (120 - 72)/250 = 19.2%.

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shown below. Which of the triangle congruence theorems could be used to prove the triangles congruent without establishing any additional information? FA 20 20 in 14 m A SSA B SSS CHL D SAS 14 in​

Answers

The right triangles are congruent by HL theorem.

What are congruent triangles?

The triangles having congruent corresponding parts are called congruent triangles.

Given are two right triangles, with equal hypotenuse and one of the bases.

The question is by which theorem do they are congruent,

HL theorem :-

The HL Postulate states that if the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent.

Since, we know that, when two right triangles have congruent hypotenuse and one of their legs are also congruent, then both are congruent by HL theorem of congruence.

Here, both the right triangles are following the condition of the HL theorem.

Hence, the correct option is HL.

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Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 + 5x - 1.

Answers

Answer:

You are correct. The answer is the blue point marked

Step-by-step explanation:

Brenda has $450 in her checking
account. She withdraws $15 a day for
lunch. Which equation can be used to
find
y, the total in Brenda's checking
account, if x represents the number of
days she bought lunch?
A. y = 450x + 15
B. y = 450 + 15x
C. y = 450 - 15x
D. y = 450x - 15
Need H

Answers

Answer:

the answer is B.450 +15x

Answer:

B

Step-by-step explanation:

What Is ''Seven times the sum of x and five is forty-nine'' written with no words?

Answers

Answer:

7(x+5)=49

Step-by-step explanation:

7 times means multiplication, so 7 times the sum of x and five is 7(x+5). When they say is 49, that means 7(x+5)=49

Fractional index
Without using mathematical table simplify the following
(16/81)^-3/4

Answers

Answer:

[tex]\frac{27}{8}[/tex]

Step-by-step explanation:

using the rules of  exponents/ radicals

• [tex](\frac{a}{b}) ^{-m}[/tex] = [tex](\frac{b}{a}) ^{m}[/tex]

• [tex]a^{\frac{m}{n} }[/tex] = [tex](\sqrt[n]{a}) ^{n}[/tex]

then

[tex](\frac{16}{81}) ^{-\frac{3}{4} }[/tex]

= [tex](\frac{81}{16}) ^{\frac{3}{4} }[/tex]

= [tex]\frac{(\sqrt[4]{81})^3 }{(\sqrt[4]{16})^3 }[/tex]

= [tex]\frac{3^3}{2^3}[/tex]

= [tex]\frac{27}{8}[/tex]

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