a circle has an area of 80 square centimeters. which answer is the closest to the measure of its radius?​

Answers

Answer 1

Answer:

the answer is 5 cm

Step-by-step explanation:

because of substitution.

80=pi*r^2


Related Questions

Can someone plz help me pretty plz

Answers

Step-by-step explanation:

[tex] \sqrt{9} + \sqrt{25} - 8 \div 2 + {3}^{2} \\ = 3 + 5 - 4 + 9 = 13[/tex]

Solve for g.
3 =g/-4-5

Answers

g = -27

Step-by-step explanation:

[tex]3 = \frac{g}{ - 4 - 5} [/tex]

Simplify

[tex] - 4 - 5 = - 9 \\ \\ 3 = \frac{g}{ - 9} [/tex]

Cross Multiply

[tex]3 \times - 9 = g \\ - 27 = g \\ g = - 27[/tex]

Answer:

G=-27.

Step-by-step explanation:

G/(-4)-5=3 G(-9)/-4-5=3(-9)=-27.

What is the greatest common factor of the number pair 20 and 30

Answers

Answer:

10

Step-by-step explanation:

do prime factorizations of each number and multiply the common factors

20 = 2 · 2 · 5

30 = 2 · 3 · 5

common factors are 2 and 5

multiply them to get 10

Solve the equations below by SHOWING YOUR WORK. This includes how you will isolate the variable and keep the equation balanced to get your answer. You must show your work and present your answer for credit. Just an answer will result in no credit. If you are not sure what this means, take a quick look at the videos or recorded lesson. A. B. X - 3.5 = 9.1

Answers

Answer:

[tex]X = 12.6[/tex]

Step-by-step explanation:

Given

[tex]X - 3.5 = 9.1[/tex]

Required

Solve for X

Add 3.5 to both sides

[tex]X - 3.5 +3.5 = 9.1 + 3.5[/tex]

[tex]X = 9.1 + 3.5[/tex]

[tex]X = 12.6[/tex]

If £27 = 500 rubles, how many £ are in 1,144 rubles? Give your answer to 2 dp.

Answers

Answer:

£61.78

Step-by-step explanation:

27/500= 0.054

0.054x 1144 = 61.776

The answer is £61.78

5x+y=2
Solve for y my teacher said to write the answer in this form y=-5x+2 because it goes with y=mx+b can it be written like that?

Answers

Y=2-5x hope this is correct

Answer:yes it can be written like that.

Step-by-step explanation:

Based on the triangles, Which statement about x is true?

Answers

.the answer is b. ^^
the answer is A.

explanation:
x+39+63=180
x+102=180
x=78
180-78=102

what's the total cost of a 280 dollar television if is the sales tax is 10%

Answers

Answer:

$308

Step-by-step explanation:

Convert the 10% to a decimal by dividing by 100 (= 0.10). Then multiply that by 280.

280 x 0.10 = $28 tax

Add the tax to the cost & you have
280 + 28 = $308.

Nancy purchased 5 CDs, each of which cost $7.90. Write and solve a division equation to find how much money Nancy spent.

Answers

Answer:

its 39.5

Step-by-step explanation:

45% of the students at Mannion Middle School walk to school. If 234 students walk to school, how many students are at Mannion Middle School?

Answers

Answer:

520

Step-by-step explanation:

234=45%

26=5%

100/5=20

20X26=520

Answer:c520 is the answer your welcome! :)

Step-by-step explanation:

PLEASE HELP! I have no clue how to do this!

Answers

Answer:

70 degrees

Step-by-step explanation:

Well as you can see the entire angle is 112° and if angle 1 is 42° then 112 - 42 = 70° which means that there are 70° left, whih is your answer.

please help my mom is about to ground me

Answers

Answer:

d

Step-by-step explanation:

180-90-40=50

D: 50

How to:
Add 40+90
Subtract from 180

The original price of a bicycle was $375. Now it is on
sale for 18% off.
Calculate the new cost of the bicycle.

Answers

Answer:

$307.50

Step-by-step explanation:

Answer:

$307.50

Step-by-step explanation:

if f (x) = -x - 7 what is f (-3)
Plz help

Answers

Answer:

f(-3) = -4

Step-by-step explanation:

f(-3) = -(-3) - 7

      = 3 - 7

      = -4

Select all expressions equivalent to 32 + 40x.

8(5x + 4)
(8 + 10x)4
4(4 + 10x) + 16
15x + 25x + 2(16)
218 + 5x) + 218 + 15x)​

Answers

Answer:

The first 4

Step-by-step explanation:

The last one is NOT equivalent to 32 + 40x. 2(18+5x) +2(18+15x)= 72+40x

-190*(x)483-913+342-4569-(y)94=

Answers

Answer:

-91770x - 94y - 5140

Step-by-step explanation:

A parabola has x-intercepts of (2, 0) and (-4, 0) and has a leading coefficient of 1. What is the equation of the parabola in standard form? *

Answers

9514 1404 393

Answer:

  y = x^2 +2x -8

Step-by-step explanation:

For x-intercepts p and q, factors of the parabola's equation are (x-p) and (x-q). Since the leading coefficient is 1, those are the only factors.

  y = (x -2)(x -(-4))

  y = (x -2)(x +4) = x(x +4) -2(x +4) . . . . use the distributive property

  y = x^2 +4x -2x -8 . . . . use the distributive property again

  y = x^2 +2x -8 . . . . . . . .equation in standard form

find x for this please.

Answers

It’s b because the opposite angle is 120 so 30 x 4 = 120°

Answer:

B) 4

Step-by-step explanation:

just plug in the numbers from your answer choices and see which one gets you to 120 since it is the opposite angle from 30x

A school bus passes through an intersection with a traffic light in the morning on its way to school and in the afternoon on its way home. The following data was collected during a school year: The bus passed through the intersection 310 times. 70 green lights were in the morning. There were 30 more red lights in the morning than in the afternoon. There were a total of 140 red lights.

Answers

Answer:

the answer is the bus is yellow

I REALLY NEED HELP

find the area of the composite figure

Pleassssessee help me

Answers

Answer:

The area of the triangle is 70.805 ft squared

Step-by-step explanation:

(could someone help me with this? thanks!)

In a bus, there are x adults, 2/3x+5 teenagers, and x/2+1 senior citizens. Write an expression to find the total number of passengers on the bus in terms of x.

Answers

Answer:

13/6x + 6

Step-by-step explanation:

combine using like terms and you get

4/6 x + 5

3/6x + 1

x

=

13/6x + 6

To go to the state park. Mary's family had to pay $3 for the car. plus $2 for each person in the car. Write an expression that could be used to find the cost for any number of people. Let x represent the number of people in the car.

Answers

Answer:

3+2x or 2x+3

Step-by-step explanation:

2x+3 The two represents the two dollars a person and x is the number of people in the car. The three is the price for the car because they only have to pay once. Hope this helps!

5 more than the product of 12 and 8

Answers

101 because of the way it is

A cell phone is originally priced at $120. The online retailer gives a discount and the cell phone is now priced at $90. Enter the percentage discount for the cost of the cell phone.

Answers

Answer:

25% discount

Step-by-step explanation:

How did ancient camels differ from those of today

Answers

Como pongo mi brainly en español porq esta en inglés

1 pts
Create an equation of a line that is parallel to y = 4x – 7

Answers

Answer:

There are many..

One would be y = 4x + 7

The trick is the slope is always the same. The only difference is the y-int. You could make one yourself, just use 4x at the beginning.

Please give Brainliest!! Hope this helps!!

9514 1404 393

Answer:

  y = 4x

Step-by-step explanation:

A parallel line will have the same slope. The given line is written in "slope-intercept form", so the slope is readily identified from the equation.

  y = mx + b . . . . . line with slope m and y-intercept b

  y = 4x -7 . . . . . . line with slope 4 and y-intercept -7

So, the parallel line will be something of the form ...

  y = 4x + b

for any value of b. The simplest is to let b=0. If b=-7, then the lines are coincident, not parallel, so that value must be excluded. Any other value of y-intercept will give a parallel line.

  y = 4x . . . . . parallel line

Hello, I need help on this question. I dont understand it and have been getting the answer incorrect. I am embarrassed to ask my teacher for help so please help

Answers

Answer:

1). 16 π cm^2

2). 112 π cm^3

3). 351.68 cm^3

***If the explanation doesn’t make sense, let me know, and I’ll try to explain in a different way.

13^2 as a multiplication of factors is

Answers

Answer:

169!

Step-by-step explanation:

f(x)=1/4(x+3)+2

Determine whether the relationship being represented is linear, exponential or neither.

A.
linear
B.
exponential
C.
neither

Answers

The answer to this question is A

GIVING BRAINLIEST AND 59 POINTS PLSSS help with all 1. Which number in the image above indicates
the part of the electromagnetic spectrum
used by a refracting telescope? sc.8.0.5.11
A) 2
BB
D
5

Answers

Answer:

only 5 pts lol

Step-by-step explanation:

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