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Sergeu [11.5K]
3 years ago
11

The volume of this sphere is 972pi cubic inches. What is its radius?

Mathematics
2 answers:
maria [59]3 years ago
8 0
4/3pi *r3 = 972pi
Divide both side by pi

4/3 *r3 = 972

r3 = 972* 3/4

r3 = 729

r = the square root of 729 to the third power (I don't know if I'm expressing this correctly but answer is 9, hope you get that)

r = 9 that's your answer.

Hope it's correct, appreciate if you could let me know
kozerog [31]3 years ago
6 0

Answer:

b. 9

Step-by-step explanation:

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In triangle ABC, the measure of angle B is 50 degrees. Select all possible values for the measures of A and C if ABC is an acute
galben [10]

Answer:

Step-by-step explanation:

Sum of angle in a triangle = 180°

<A+<B+<C = 180

Given <B = 50°

Substituting into the formula

<A+50+<C = 180

<A+<C = 180-50

<A+<C = 130°

Since the ∆ABC is an acute triangle, the angles <A and <C must be angles less than 90° since acute angles are angles less than 90°

The possible values of <A and <C that will be acute and give a sum of 130° are;

∠A= 58° and ∠C= 72°

∠A= 80° and ∠C= 50°

∠A= 60° and ∠C= 70°

You can see that all the Angles are less than 90° and their sum is 130°

5 0
3 years ago
Use the multiplier method to increase £72 by 12%<br> You must show your working.
cricket20 [7]

Answer:

£80.62

Step-by-step explanation:

100+12%=112%

112/100= 1.12

1.12*£72 =£80.62

5 0
3 years ago
Find the solution of the system of equations 2x-4y=32 2x-8y=48
Sveta_85 [38]
<span>2x-4y=32
2x-8y=48
--------------subtract
4y = - 16
y  = -4

</span>2x-4y=32 
2x- 4(-4)=32 
2x + 16 = 32
2x = 16
x = 8

answer
(8, -4)
6 0
3 years ago
Read 2 more answers
Rachel earned $34 in 4 hours at her job today she wants to know how much she could earn(e) tomorrow if she works 10 hours at the
nlexa [21]

Answer:

85 dollars

Step-by-step explanation:

6 0
3 years ago
What is 84 seconds to 8 seconds
Inessa05 [86]

Answer:

8 out of 84: 90% decrease

200 out of 238: 16% decrease

Step-by-step explanation:

To find a percent decrease, you first subtract the end number by the initial number. This gives you the change.

ex. 84-8=76

Now you divide the change by the initial number. You'll get a decimal.

ex. 76/84=0.904...

Multiply the decimal times 100, or move the decimal to the right twice.

ex. 0.904... -> 90.4...

Now round to the nearest ones place

ex. 90.4 -> 90%

5 0
3 years ago
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