Answer:
-2π square inches per second
Step-by-step explanation:
The lateral surface area is the product of the height and circumference, so can be described by the formula ...
LA = 2πrh
Differentiating with respect to time, we get ...
LA' = 2π(r'h +rh')
Filling in the given values, gives ...
LA' = 2π((-0.5 in/s)(14 in) + (4 in)(1.5 in/s)) = 2π(-7 in²/s +6 in²/s)
= -2π in²/s ≈ -6.283 in²/s . . . . rate of change of lateral area
40% of 250. Well we can just do 250*.4 as .4 is the same as 40%. And if I did this right it should be 100
Answer) B 100
Hope I helped
Answer:
V = 27.16inch^3
Step-by-step explanation:
Find the radius = 8/2 = 4
V=4/3 π r3
V=4/3 π * 4 x 4 x 4
V=4/3 π * 64
V = 4/3 π = 0.42441318157 = π +1/3 Take this and multiply to 64
0.42441318157 x 64 = 27.1624436205 = 27.162444
V = 27.16inch^3
10 plus 5x = 50(x=8)
62 times 2x = 128(x=31)