Asphere has a diameter of 20 ft What is its surface area?
The surface area of the sphere is?

Answers

Answer 1

Answer:

1256 ft²

Step-by-step explanation:

20 ÷ 2 = 10

4πr²

4 × 3.14 × 10²

4 × 3.14 × 100

4 × 314

1256


Related Questions

Check all that apply: Which similarity statements are true?

Answers

Answer:

B and C

Step-by-step explanation:

Which functions are even?​

Answers

Answer:

Step-by-step explanation:

First function:  even, because both exponents are even; graph is symmetric about the x-axis

Second function:  mixture of even and odd exponents:  not even

Third function:  This is the square root of x - 2; not even

Fourth function:  |x| is even; graph is symmetric about the x-axis

quinn and randy both opened savings accounts with $50. Quinn deposited $25 each week for 4 weeks . randy deposited more than $25 each week for 4 weeks

which graph could represent randy’s total savings during 4 weeks ?

A
B
C
D

Answers

Your answer is D because his line needs to be slightly above +25 each time 50+25=75 so his line would be above 75


A quantity with an initial value of 670 decays continuously at a rate of 25% per hour.
What is the value of the quantity after 7 hours, to the nearest hundredth?

Answers

Answer:

89.43

Step-by-step explanation:

a = 670 * (1 * .25)^7

a = 670 * (.75)^7

a = 89.43

Paige ran four miles a day last week. This week, she ran five miles a day. How did adding a mile most likely affect her workout?

Answers

Answer:

A. It increased both her intensity and her workout time.

Step-by-step explanation:

A. It increased both her intensity and her workout time.

B. It decreased her intensity but increased her workout time.

C. It increased her intensity but decreased her workout time.

D. It decreased both her intensity and work out time

Last week = 4 miles per day

This week = 5 miles per day

Intensity refers to how hard one exercises.

Workout time refers to how long one exercises the body.

By adding a mile, she has increased how hard she exercises her body (intensity))

And also increased how long she exercises the body (workout time) because the time she spent on 5 miles per day is more than time spent on 4 miles per day

NO LINKS!!! PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer:

for number one it is 6

for number two it is 48

Step-by-step explanation:

please mark brainliest

Answer:

Step-by-step explanation:

1. 3 · 2 (First power) = 3 · 2 = 6

2. 3 · 2 (Fourth power) = 3 · 16 = 48

Help me plzzz

Stefan bought 3 hamburgers and 4 fries for a total cost of $26.50.

Answers

Answer:

6.50

Step-by-step explanation:

Answer:

6.50

Step-by-step explanation:

the 7 one is too high to make sense and the rest are to low to make sense its a multiple choice question so it probably one mark for correct answer

The ratio of dogs to cats at the animal shelter is 2:5. If there are 35 cats, how many dogs are there?

Answers

Answer:

Step-by-step explanation:

there are 18 dogs

Answer:

14

Step-by-step explanation:

So the ratio of dogs (2) to cats (5) is 2:5

How did we go from 5 to 35?

Multiply by 7

So multiply 2 with 7 which is 14

So there are 14 dogs

Hope this helps!

Find x such that x, 56, 65 is a Pythagorean triple.


Help ASAP

Answers

Answer: 59

Step-by-step explanation:

Answer:

x = 33

Step-by-step explanation:

b^2 = c^2− a^2 = 652 − 562 = 4225 − 3136 = 1089 =33^2

???????????????????????????????????///

Answers

Answer: is

59

Step-by-step explanation:

pls give brainly

Which graph represents the function f(x) = 5x + 3?
6
5
A++
4
34
2
1
o
-6 -5 -4 -3 -2 -14
1
2
3
4
5
х
2
3

Answers

Answer:6

Step-by-step explanation:

Which graph represents the function f(x) = 5x + 3?

6

5

A++

4

34

2

1

o

-6 -5 -4 -3 -2 -14

1

2

3

4

5

х

2

3

The graph of the linear equation can be seen below.

Which graph represents the given function?

Here we have the linear function:

y = 5x + 3

To graph this, we need to find two points on the equation and then connect them with a line.

By evaluating in 0 we get:

y = 5*0 + 3 = 3

So the point (0, 3) is on the line.

By evaluating on 1 we get:

y = 5*1 + 3 = 8

So we have the point (1, 8).

Now we just plot them and connect them with a line, the graph is the one below.

If you want to learn more about linear equations:

https://brainly.com/question/1884491

#SPJ5

What is the coefficient in the following expression? 5a2-7​

Answers

Answer:

coefficient = 5

Step-by-step explanation:

i want to know the answer to the sum of f and 6

Answers

f + 6 = ?

Well, the answer can be pretty much any number. It all depends on what number f is. f is a variable, so you can plug in any number to replace f.

For example, if f was 5, this is what the equation would look like:

5 + 6 = 11

If f was -3, this is what the equation would look like:

-3 + 6 = 3

So, again, the answer can be anything. It depends on what f is.

Can someone help me with this question?

Answers

Answer:

A = 20.25 sq units

Step-by-step explanation:

to find the area of a square you only need to know the measure of one side -- all other sides will be equal to it

it appears the segment is 4.5 units so you would square that to get the area

A = 4.5²

A = 20.25

how many vertices has a triangular pyramid and a triangular prism

Answers

A triangular pyramid has 4 vertices and triangular prisms 6 vertices

Find the measure of angle 7
I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER

Answers

Answer:

119

Step-by-step explanation:

Answer:

119

Step-by-step explanation:

im sure now

Please help with this question from Khan Academy!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B = 42

Step-by-step explanation:

B × 2/7 = A

A ÷ 2/7 = B

12 ÷ 2/7 = B

B = 42

Which equation is correct?
please help me :((

Answers

Answer:

sin x° = opposite ÷ hypotenuse

Step-by-step explanation:

Cosine is represented by the expression adjacent ÷ opposite and sine is represented by opposite ÷ hypotenuse. Only the fourth option lines up with the functions defined above.

If you are having trouble remembering the ratios for each trig function, you can use the acronym SohCahToa. This stands for:

S - sine

o - opposite

h- hypotenuse

C - cosine

a - adjacent

h - hypotenuse

T - tangent

o - opposite

a - adjacent

PLEASE HELP!! WILL AWARD BRAINLIEST!!

Answers

Answer:

2.478 million at the end of 2015

Step-by-step explanation:

Multiply the amount of population at the end of 2012 times 6%

2.1 times 0.06 = 0.126 million

So, at a constant rate, yearly, the population of Dubai increases 0.126 million

2015-2012 = 3

0.126 times 3 = 0.378 million

2.1 + 0.378 = 2.478 million

hope this helps:)

The cost to play the game is $2. The winner gets $6 for making green. Suppose 36 people play the game. How much money will the school take in from this game before giving out prize money? *

Answers

Answer:

$72

Step-by-step explanation:

I did 36 x 2. I did not subtract the -6 for the prize money because it says not to.

Answer:

$72

Step-by-step explanation:

You are trying to determine how much money the school will take in before giving out prize money. Knowing this, you can actually ignore the $6 that the winner will get because you are not worried about giving out the prize money yet. You are only worried about how much you will make before the prize money.

So, you can do simple multiplication to find the answer:

price per game * amount of people playing game = money made from games

$2 * 36 = x

$72 = x

I need to find x pls help

Answers

x = 120 degrees

Explanation:

Draw the line BC

(Angle DBC is 90 degrees because it is an angle in a semicircle.)
Angle DBC = 90 degrees

Angle ABC = Angle ABD + Angle DBC = 30 + 90 = 120 degrees

What is the degree of 5x + 3x2 - 4x+1?
3
4
5
6

Answers

Step-by-step explanation:

option A

3 IS CORRECT

HOPE IT HELPS

Answer:

3

Step-by-step explanation:

edge 2021

By what percent will a fraction increase if its numerator is increased by 60% and its denominator is decreased by 20%?

Answers

Answer:

133.33%

Step-by-step explanation:

x/y * k = 1.6x / 1.2y

k = (1.6x / 1.2y) / (x/y)

k = 1.6/1.2

k = 4/3 = 1.3333 = 133.33%

Please help, it’s due tonight. I do have my answer I just need help explaining how it work for any number..

Answers

Answer:

Yes it is 10!

Step-by-step explanation:

5+20=25

25x5=125

125+125=250

250-200=50

50/5=10

What amount would yield an interest of $66 in 2 years at 3% p.a.?

Answers

It would be 12 because you have to solve for the percent

A farmer stacked hay bales. The volume of each hay bale is 10 2/3 cubic feet. The farmer stacked eight hay bales on top of one another. What is the total height of 1 hay bale? What is the total height of the 8 stacked hay bales? L=1 1/3ft W=4ft

Answers

Given:

Stacked Hay Bales:

L = 1 1/3 feet
W = 4 feet

The volume of each hay bale is equal to 10 2/3 cubic feet
The number of hay bales stacked = 8

To solve for the height, use the volume of the bales and the given length and width of a single bale.

V = l x w x h
10 2/3 cubic feet = 1 1/3 feet * 4 feet * height
height = 2 feet

So, if the height of one bale is 2 feet, then the height of 8 bales stacked is

2 feet * 8 bales = 16 feet

Therefore the height of the stacked hay bales is 16 feet.

Escriba larazon entre la distancia (d)recorrida por un automóvil y el tiempo (t)empleando velocidad (v) es una razón entre distancia y el tiempo y de valor de su velocidad v=d/t

Answers

Answer:

V = d / t

Step-by-step explanation:

La velocidad se define como la relación entre la diatancia cubierta por un cuerpo y el tiempo necesario para cubrir esa distancia.

Si el tiempo empleado se da como (t)

La distancia recorrida se da como (d)

Podemos escribir la velocidad (V) en términos de disance y tiempo como;

V = d / t

Convert to percentages. List answers starting from the top. *
41%
1.836
6/50

Answers

Answer:

41% is already in percentage form.

1.836 is 183.6 %

6/50 is 12%.

Step-by-step explanation:

41% is already in percentage form, so I'm just going to leave that as it is.

1.836 has 1 whole already, so we know it's going to be more than 100%. Than we have that extra 83.6, so that would be 183.6% as a decimal.

6/50, well we divide to get 0.12, and 0.12 as a percent is 12%.

Please mark branliest, thanks!

What is 6574893 + 7?????

Answers

Answer:

6574900

Step-by-step explanation:

Answer:

6,574,900

Step-by-step explanation:

have a good day

If 2^x = 5, what is 2^3x - 4?

Answers

Answer:

the value of x is 2^9/4 then 2^3x-4=2^11/4

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