Answer:
3.14 cm²/min
Step-by-step explanation:
rate of increasing of radius, dr/dt = 0.01 cm/min
r = 50 cm
Area of plate, A = πr²
rate of increase of area
dA/dt = 2πr dr/dt
dA/dt = 2 x 3.14 x 50 x 0.01
dA/dt = 3.14 cm²/min
Thus, the increase of rate of area is 3.14 cm²/min.
Answer:
so that when we subtract we are subtracting from the corresponding decimal places
Step-by-step explanation:
Answer: Length because A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length.
The surface area of a prism is the sum of the lateral area plus the area of the two bases.
<span>LA = p * h </span>
<span>p is the perimeter of the base </span>
<span>For your prism </span>
<span>SA = 2(70) + 50 * 9 = 590 mm^2 <-----OPTION C
</span>
Hope this answers the question,
