V=hpir^2
tricky, they didn't give us radius
they just gave circiufmerece
c=2pir
25.12=2pir
divide by 2 both sides
12.56=pir
divide by 3.14 both sides
4=r
subsitutet
v=hpir^2
v=66pi4^2
v=66pi16
v=1056pi
v=3315.84 cubic inches
Answer:
89.25
Step-by-step explanation:
1. multiply 3.5 by what is in parentheses
2. Subtract 89.25 by 57.75
Answer:
About two times greater.
Step-by-step explanation:
8 times 10 minus 3 equals 77.
4 times 10 minus 6 equals 34.
77 minus 34 is 43
43 minus 34 is 9.
34 can only be put into 77 two times
Potatoes cost $1.20 / kg. If you buy 0.8 kg, how much are the potatoes? (Answer $0.96)
Answer:
V=π r2h=cylinder
V=πr2 h/3 =cone
Step-by-step explanation:
