Answer:
what is this lol can u tell u
A.
volume of a sphere is 4/3*pi*r^3
4/3*3.14*1.6^3 = 17.1486 cm^3
because it is a half sphere, divide that by 2:
8.5743 cm^3
b.
volume of a cylinder is base area (pi * r^2) multiplied by the height
The cylinder shares a radius with the half sphere, so this gives us:
3.14*1.6^2*6.2 = 49.8381 cm^3
c.
this is simply the combined volume
8.5743 + 49.8381 = 58.4124 cm^3
Answer:
2y + 4
Step-by-step explanation:
Answer:
Perimeter of rectangle added 2 to length:
perimeter of rectangle= length + width + length + width
P = ( l + 2 ) + w + ( l + 2 ) + w
P = 2 ( l + 2 ) + 2 w
P = 4 + 2 l + 2 w
Perimeter of rectangle added 2 to width:
P = l + w + l + w
p = l + ( w + 2) + l + ( w + 2)
p = 2 l + 2 ( w + 2)
p = 2 l + 2 w + 4
