Given the volume of a cylinder V = pi(r2)h we simply plug in the numbers The radius is half the diameter so r = 4cmthe height h is given as 12 cmV = 3(42)(12) = 3(16)(12) = 576 cm3 Note: Generally we would use 3.14 as the rounded value of pi.
Answer:
9cm
Step-by-step explanation:
The formula for the area of a parallelogram is base x height.
You have the height, 7cm, and the area, 63cm^{2}[/tex].
So the equation is B x 7 = 63. Simply take 63 divided by 7 and you get 9.
Answer: 9cm
3+1/4+2+1/4+3/4+1+3/4= 8ft. Therefore Barb started with 8ft of ribbon
Answer:
1/6
Step-by-step explanation:
this is because when u divide the numerator and denominator by 5 you get 1/6
Bob can shingle 1 roof for every 10 hours of work. (1/10)James can shingle 1 roof for every 16 hours of work. (1/16)To find out what they can do together, you must add their rates of work together.This will be the number to find how fast they can shingle 1 roof in t amount of hours (1/t) 1/10 + 1/16 = 1/t 8/80 + 5/80 = 1/t 13/80 = 1/t Cross multiply 13(t) = 1(80) 13t = 80 t = 6.15 It would take them 6.15 hours to complete the roof together.
