The lateral surface area of a cylinder is:
a=2πrh, we are told that r=1.8ft and h=4ft so
a=2π(1.8*4)
a=2π(7.2)
a=14.4π ft^2
a≈45.24 ft^2 (to nearest hundredth of a square foot)
<span>_award brainliest if helped!!
</span>Difference in speed = 47+35 = 82km/h
(They are going in opposite directions)
So they are drifting apart at rate of 82km/h
Time taken to be 50km apart = 50/82 = 0.6<span> h</span>
Total # multiplied by % =portion
=2000 * 85%
=2000 * 0.85
=1,700 # of albums autographed
Hope this helps! :)
Pretty sure the answer is D.
