Answer:
V ≈ 68.63 cm³
Step-by-step explanation:
the volume (V) of a sphere is calculated as
V =
πr³
the volume of a hemisphere is half the volume of a sphere, so
V =
×
πr³ =
πr³ , then
V =
π × 3.2³
=
π × 32.768
≈ 68.63 cm³ ( to 2 dec. places )
Child=x
Adult=y
y=3x
5.2x+9.9y=767.8
5.2x+9.9(3x)=767.8
5.2x+29.7x=767.8
34.9x=767.8
x=22
Answer:
A terminating decimal, terminates, or stops. For example: 1.5. A repeating decimal keeps repeating itself. For example: .999999999999 (and so on). Hope I helped!
Step-by-step explanation:
An exponent is the number or value being raised to a power.
Answer:

Step-by-step explanation:
If we have a pizza that has
slices and we want to split it between 4 friends, then each friend will get
slices.
Now, Harris is one of those friends so he receives
slices, but he eats one less than he receives. Therefore, we subtract one from this expression to get our final answer of
.
Hope this helped!