Question

PLEASE HELP ME :)
If the sphere shown above has a radius of 1 unit, then what the volume of half the sphere.
A.) 2π/3 cubic units
B.) 8π/3 cubic units
C.)4π cubic units
D.) 4π/3 cubic units
When you click on the question you will see the picture that goes with it. Please help me

Answer 1

it would be 3.14 times 2

Answer 2

6.28

Answer 3

so what would the answer be

Answer 4

You can work it out. The volume of a sphere is\[(4/3)\pi r ^{3}\]You are seeking half volume.

Answer 5

oh so it's D?

Answer 6

You are just guessing. Try and do the work.

Answer 7

but you posed 4/3 and thats one of my chocies....Do it divide it?

Answer 8

The volume of a sphere is equal to that radius one. You are seeking half volume, half. Don't guess because it looks right, do the work.

Answer 9

i am cocnfused whats have of 4/3

Answer 10

Half means multiply by 1/2; or divide by 2. Half of 100 is 50, half of 2 is 1.

Answer 11

i got .66666 when i multiply it

Answer 12

Your answer choices are in what is called exact figures which means most of the time you can do it without calculator and keep figures like pi. So it simply means dividing 4 by 2.

Answer 13

oh so it's 2

Answer 14

and the only chocie that has 2 is A...so the answer is A?

Answer 15

is that right ?:)

Answer 16

You've worked it out. Rely on your work. Have confidence in your answer. Move on to the other one.

Answer 17

So yes its A... I am confident but i what to make sure?

Answer 18

So yes its A... I am confident but i what to make sure?