Answer:65
Step-by-step explanation: So the answers would be 78 as well
Answer:
138.3ft^3
Step-by-step explanation:
Volume for cylinders : V = pi*r^2*h
Volume for cones : V = pi*r^2*(h/3)
Since we know the radius (r) is 2 and the height is 10 and 3 for the cylinder and cone respectively, all we do is plug in.
Volume for cylinder is about 125.7ft^3
Volume for cone is about 12.6ft^3
Then just add them together for a total of 138.3ft^3
Answer: 280
to find volume it's Length x Width x Height
8x7x5 = 280
A) 27, 81
b) -30,-15
c) -3, 1
d) -320, 1280