Answer:
14.07cm
Step-by-step explanation:
volume of a cylinder is πr2h
22/7*8.4*8.4*h=3119.5
h=14.07cm
Well you can put 4/5 in a decimal form by dividing it
which is 0.8
To do this problem:
-5y + 8 = -3y + 10 (add 3y to both sides)
-2y + 8 = 10 (subtract 8 from both sides)
-2y = 2 (divide by -2)
y = -1