Answer:
738π cm^3
1458π cm^3
Step-by-step explanation:
The volume of a cylinder is V = πr^2 h, where r=radius and h=height.
a) V = πr^2 h
= π6^2 20.5 = 36*20.5π = 738π cm^3
b) V = πr^2 h
For this one, remember that diameter is half of radius. d = 18, r = 9.
V = π9^2 18 = 81*18π = 1458π cm^3
Answer:
m = 0.36666666666667
Step-by-step explanation:
im not sure if im correct.
<span>The area of a rectangle = length * width
20 = 5 * (x+1)
solve for x:
20 = 5(x+1)
x+1 = 4
x=3
and the width = x+1 = 3+1 = 4
</span>
Answer:
49/4
Step-by-step explanation:
All you need to do is multiply the whole number (12) by the bottom number of the fraction (it's also called the denominator) and then add it to the top number of the fraction (otherwise known as the numerator)