А,
2. (Power Functions)
Write down the formula of the function which gives the area A of a circle of radius r.
(b) Using fomulas for circles of radius rı and rz, and areas Ai and Az, to complete this:
A₂
(c) Using each of (a)'s function and (b)'s ratio and proportion result, how would we have to
adjust the circle's radius if we want its area to triple?
(d) The ratio A/A2 in (b) involving areas is "dimensionless". Why do we say this? ​

Answers

Answer 1
Hey I don’t understand

Related Questions

Find the radius of a circle if its center is (2,3) and one point on the circle is (5,3).

Answers

Answer:

Step-by-step explanation:

radius = distance between (2,3) and (5,3) = √[(5-2)² + (3-3)²]  = 3

The required radius of the circle is

center is (2,3)
point
on the circle is (5,3).

What is radius?

Radius of the circle is the distance between the center to the circumference.

Radius = [tex]\sqrt{(X_2-X_1)^2+(Y_2-Y_1)^2}[/tex]
=[tex]\sqrt{(5-3)^2-(3-3)^2}[/tex]

Radius = [tex]\sqrt{4}[/tex]
Radius = 2

Thus, the required radius is 2 .

Learn more about radius here:
https://brainly.com/question/13449316

#SPJ2  

The sum of 25 and h is divided by f cubed.​

Answers

the answer is (25+_h) / f3

Connie has to solve the following problem.
5 boxes of cereal costs $12.50. How much will 18 boxes cost.
Choose EVERY proportion Connie could use to solve this problem.
- 12.5/5 = 18/x
- 5/12.5 = 18/x
- 5/12.5 = x/18
- 5/18 =12.50/x

Answers

Answer: A

Step-by-step explanation:

Because to find if proportional you need to divide

PLEASE HELP IMMEDIATELY!!! WILL MARK AS BRAINLIEST

Answers

Answer:

2

Step-by-step explanation:

A parallogram is ______________ a rectangle.

a
sometimes
b
always
c
never

Answers

Answer:

sometimes a square could be a parallelogram too and a rhombus and a normal parallelogram

Step-by-step explanation:

it has two parallel pairs

The RANGE of the graphed function is

Answers

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

The first week of January it
snowed 12 inches. This week
it snowed 16 inches. How
many inches has it snowed in
all?

Answers

Answer:

28 inches

Step-by-step explanation:

the answer is 28 inches

12+16= 28

Number of snow snowed in January = 12 inches

Number of snow snowed this week = 16 inches

Number of snow snowed at all = 12+16

= 28 inches

hence it snowed 28 inches at all

John sells apples for $5 per bunch and watermelons for $3 a piece. He made $100 today and sold 10 watermelons. How many bunches of apples did he sell?

Answers

Answer:

14

Step-by-step explanation:

3*10=30

5*14=70

30+70=100!!!  

Answer:

he sold 14 apples

Step-by-step explanation:

multiply 10 (watermelon) and 3 (the cost) which is 30

now subtract 30 from 100 which is 70

last do 5 (the cost of apple bunch) by 70 to find the total number of bunches he sold which is 14

Which of the following describes volume? I. the amount of frosting on a cake II. the amount of space in a sock drawer III. the distance between two cities IV. the amount of fabric needed to cover a couch cushion
A. II
B. III
C. IV
D. I

Answers

Answer:2

Step-by-step explanation:

How do you solve 3n-4=14! I need it explained

Answers

Here you go!
3n-4=14
+4 +4
3n=18
(Divide both sides by 3)
n=6

Answer:

n=6

Step-by-step explanation:

3n-4=14

Add 4 to both sides;

3n-4+4=14+4

Simplify;

3n=18

Divide both sides by 3

3n/3=18/3

Simplify;

n=6

Simplify the expression: 5(-5 + 2y) =

Answers

The answer is-25+ 10y

• How do you write the mixed number shown as a fraction greater than l? 3 4​

Answers

Answer:

[tex] \frac{14}{4} [/tex]

simplified [tex] \frac{7}{2} [/tex]

Step-by-step explanation:

To turn a mixed number into a fraction :

[tex]3\frac{ + 2}{ \times 4} [/tex]

3 x 4 =12 +2 =14 that will be your numerator (top number on a fraction)

and 4 will be your demoninator (bottom number)

What is the equation of the circle with a radius of 4 and a center at (3, 2) ?

Answers

Answer:

(x - 3)^2 + (y + 2)^2 = 16

Step-by-step explanation:

(x - h)^2 + (y - k)^2 = r^2

r = radius

(h, k ) is center of circle.

The center of the circle is (3, 2) and r is 4.

(x - 3)^2 + (y + 2)^2

16

Best of luck :3

Scores on the GRE.
A college senior who took the Graduate Record Examination exam scored 560 on the Verbal Reasoning section and 740 on the Quantitative Reasoning section. The mean score for Verbal Reasoning section was 460 with a standard deviation of 132, and the mean score for the Quantitative Reasoning was 452 with a standard deviation of 140. Suppose that both distributions are nearly normal. Round calculated answers to 4 decimal places unless directed otherwise.
(a) Write down the short-hand for these two normal distributions
(b) What is her Z score on the Verbal Reasoning section? On the Quantitative Reasoning section? Draw a standard normal distribution curve and mark these two Z scores.
(c) What do these Z scores tell you?
(d) Relative to others, which section did she do better on?
(e) Find her percentile scores for the two exams.
(f) What percent of the test takers did better than her on the Verbal Reasoning section? On the Quantitative Reasoning section?

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Verbal:

Score, x = 560

Mean, m = 460

Standard deviation, s = 132

Quantitative :

Score, x = 740

Mean, m = 452

Standard deviation, s = 140

a)

Verbal :

X ~ N(460, 132)

Quantitative :

X ~ N(452, 140)

(b)

What is her Z score on the Verbal Reasoning section? On the Quantitative Reasoning section? Draw a standard normal distribution curve and mark these two Z scores.

Zscore = (x - m) / s

Verbal :

Zscore = (560 - 460) / 132 = 0.758

Quantitative :

Zscore = (740 - 452) /140 = 2.057

(c.)

He has a higher standardized score in the quantitative than the verbal score.

(d.)

The Zscore shows that he performed better in the quantitative reasoning than verbal.

(e) Find her percentile scores for the two exams.

(f) What percent of the test takers did better than her on the Verbal Reasoning section? On the Quantitative Reasoning section?

Verbal :

Score greater than 560

P(x > 560) :

Z = (560 - 460) / 132 = 0.758

P(Z > 0.758) = 0.22423 = 22.4%

Quantitative :

Score greater than 740

P(x > 740) :

Z = (740 - 452) / 140 = 2.057

P(Z > 0.758) = 0.0198 = 1.98%

What is another name for angle 1? 1.∠JNL 2. ∠N 3. ∠MNK 4.∠NLJ

Answers

Answer:

1. <JNL

Step-by-step explanation:

Point N is the vertex of angle 1. Therefore, we can give <1 another name by using 3 letters which includes the letter of vertex point in the middle, and two other letters of the two rays that meets at the vertex point.

Thus, JN and LN meets at point N. Therefore angle 1 can be named as:

<JNL

10) Quantas combinações de duas cores podemos fazer com as cores verde, azul, amarelo,
vermelho e preto.
a) 20
b) 10
c) 38
d) 45

Answers

A 20 is your answer

6) The coordinates of the origin are​

Answers

Answer:

(0,0)

Step-by-step explanation:

Required

Determine the coordinates of the origin

In geometry, the coordinates of the origin is the point where x and y are 0.

i.e.

[tex]x = 0[/tex] and [tex]y = 0[/tex]

So, the coordinate (x,y) is (0,0)

Adam has 1/2 quart of milk. If he pours the same amount if milk into 3 glasses. How many quarts of milk will each glass have?

Adam tiene 1/2 cuarto de litro de leche. Si vierte la misma cantidad si la leche en 3 vasos. ¿Cuántos cuartos de leche tendrá cada vaso​

Answers

Answer:

3/2 or 1 1/2

Step-by-step explanation:

So 1/2 * 3 = 3/2 or 1.5 which as a fraction simplified is 1 1/2. Hope that helps!

1/2 ÷ 3= 1/2 ÷ 3/1=1/2 •1/3=1/6
Each glass will have 1/6 quart of milk

A square is inscribed in a circle as shown. If the side length of the square is 16 feet, calculate the area of the shaded region to the nearest tenth.

Answers

Answer:

probably 145.15ft^2 but who really knows good luck

Step-by-step explanation:

we're gonna have to find the area of the square and circle and then subtract the square area to see the remaining shaded area's value. if the square has side of length 16 then we know it's area is 16ftx16ft=256ft^2. Now the area of the circle requires us to know its radius. we see the diagonal dashed line travels the diameter of the circle. you can use pythagoras theorem to find its length so sqrt(16^2+16^2)=22.63ft. but this is diameter and we want radius so 22.63/2=11.3ft. the formula for the area of a circle is pi*r^2 so pi*11.3^2=401.15ft^2. now we can say 401.15-256=145.15ft^2

Given the following right triangle, solve for the missing side length, r: *

29.24 m
200 m
30 m
2.5 m

Answers

Answer: 29.24 m
Ex: sin20deg = 10/r
r(sin20deg)=10
r=10/sin20deg

Parents of children with developmental disorders can apply for federal funding, to help pay for psychosocial rehabilitation. A sociologist working for the annual Current Population Survey wants to know the percentage of applicants for this funding who are in poverty. She needs a sample of applicants from across the U.S., so she groups all of the applications by state and randomly selects applicants from each state. What sampling scheme did she use

Answers

Answer:

Stratified sampling

Step-by-step explanation:

key word "groups"

The sampling scheme did she used is stratified sampling.

What is stratified sampling?

It is a method of sampling where the division of the population should be split into the smaller subgroup called a strata. The strata should be created depending upon on the members shared like the income etc. Here the sample should be needed for applicants for across the US also it randomly selects the applicants for each state.

So, The sampling scheme did she used is stratified sampling.

Learn more about a sample here: https://brainly.com/question/24526520

8b+3=35. when solving for B what is ur first step ​

Answers

Answer:

Put B on the one side, then the numbers go on the other side

Milo has 5 nickels. Milo has 6 fewer nickels than Elliott. How many nickels does Elliott have?

Answers

Answer:

11

Step-by-step explanation:

x - 6 = 5

this was useless because a selected the exact answers and they where all wrong :(

Answers

Answer:

srry

Step-by-step explanation:

Maybe! I think people are all nice to help. Sometime is wrong but their is nice don't you think?

Gretta is 1 1/2 meters tall. Which of the following is equivalent to 1 1/2

1,000
1,500
100
150

Answers

Answer:

1000

Step-by-step explanation:

HELP WHOEVER ANSWERS CORRECTLY GETS BRAINLIEST ANSWER

5x+7y+12.5+6y+1x+5

Answers

Answer: 6x + 13y + 17.5

Step-by-step explanation:

Solve the proportion

Answers

To solve this, you need to cross multiply the fractions.

Let’s say you have these fractions:
A / B = C / D

To cross multiply, multiply the denominator of the first fraction (B) by the numerator of the second fraction (C). Multiply the numerator of the first fraction (A) by the denominator of the second fraction (D).

You get B x C = A x D

After cross multiplying your fractions, you get 63 = 7(c +4)

Distributing the 7 into c+4 gives you this:
63 = 7c + 28

Now solve this like a normal equation with a variable

63 = 7c + 28
35 = 7c
5 = c

To double check that, plug c = 5 into the original equation.

1/(5) + 4 = 7/63
1/9 = 7/63

7/63 simplifies into 1/9 (7:7 = 1, 63/7 = 9)

1/9 = 1/9 so c = 5 is correct

HELP PLSS I DONT WANNA FAIL

Answers

Answer: 1/2 and 3/6

Explanation: 1/2 is equal to 3/6 because if you divide both 3 and 6 by 2 it’s 1/2

Not sure about 4

What fraction, in hundredths, is equivalent to 1/10

Answers

Answer:

0.01

Step-by-step explanation:

One-tenth equals 0.1 and one-hundredth equals 0.01, which means that hundredth equals 10 hundredths.

Answer:

Step-by-step explanation:

10/100

Here is some record-keeping from a coffee shop about their paper cups. Cups are delivered 2,000 at a time. How many paper cups are left at the end of the day on Wednesday?

Answers

Answer:

1748

Step-by-step explanation:

Tuesday + Wednesday - Monday

1748 is the correct answer
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