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Orlov [11]
2 years ago
14

ANSWER THIS CORRECTLY FOR BRAINLIEST!!!! This is 8th grade algebra btw

Mathematics
2 answers:
gulaghasi [49]2 years ago
7 0

Answer:

V = 2143.57

Step-by-step explanation:

To find the volume of a sphere you need to use this formula:

V = \frac{4}{3}\pi r^{3}

r = radius

Solve:

You need the radius from the diameter. Divide 16/2 which is

8.

V = \frac{4}{3}(3.14) 8^{3}

V = 2143.57

kozerog [31]2 years ago
3 0
I believe it will be 2143.57
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Answer:

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b: 0.0265

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Step-by-step explanation:

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HA:  µ < 20

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Since the alternate hypothesis has a < sign in it, it is a left tailed test.  The < or > sign in the alternate hypothesis points towards the rejection region.

For a:  We need to calculate the test statistic for our situation.  This is done with a z-score formula for samples.  

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See attached photo for all the calculations!

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3 years ago
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