The volume of a sphere is calculated like so:
v = 4*pi*r^3/3
so half sphere will have half that volume:
v = (4*pi*r^3/3)(1/2)
v = 4*pi*r^3/6
plug in the data:
v = 4*pi*(10)^3/6
v = 2094.4
that is the volume of the half sphere

7 0

2 years ago

What is the volume of a square pyramids

frozen [14]

Answer:

$\large\boxed{V=75\ in^3}$

Step-by-step explanation:

The formula ogf a volume of a pyramid:

$V=\dfrac{1}{3}BH$

B - area of a base

H - height

We have a base length a = 5 in and a height H = 9 in.

In the base we have a square. The formula of an area of a square is:

$B=a^2$

Substitute:

$B=5^2=25\ in^2$

Calculate the volume:

$V=\dfrac{1}{3}(25)(9)=(25)(3)=75\ in^3$

7 0

3 years ago

Which of the following is a solution of y > |x| - 5?

Strike441 [17]

B is the answer!!!!!!!!!

5 0

2 years ago

Geometry Question: BK bisects angle ABC and M angle ABK=28.3 degrees. Find M angle KBC and M angle ABC.

Nookie1986 [14]

Answer:

$ABK = 28.3$

Step-by-step explanation:

Given

$ABK = 28.3$

Required

Determine KBC

Since BK is a bisector of ABC at B,

this implies that:

$ABK = KBC$

Substitute 28.3 for ABK

$28.3 = ABK$

Reorder

$ABK = 28.3$

7 0

3 years ago

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