A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square
meters per hour. If the width increases by 40 centimeters per hour how quickly does the length increase initially
1 answer:
Answer:
The length of rectangular is increasing at a rate 0.5714 meters per hour.
Step-by-step explanation:
We are given the following in the question:
Initial dimensions of rectangular box:
Length,l = 10 m
Width,w = 7 m

We have to find the rate of increase of length.
Area of rectangle =

Differentiating we get,

Putting values, we get,

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.
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Answer:
310.86ft²
Step-by-step explanation:
30/2 = 15
3.14*15² = 706.5
30+3+3 = 36
36/2 = 18
3.14*18² = 1017.36
1017.36 - 706.5 = 310.86
Hope it helps
If x=first even number in sequence, then the next even number would be that number plus 2, plus 4, and so on.
x + (x+2) + (x+4) + (x+6) + (x+8) = 100
5x+20=100
5x=80
x=16
Answer:
$14.60
Step-by-step explanation:
5.84 times 2.5 = 14.6