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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I believe the answer is D
Answer:
B?
Step-by-step explanation:
3^6 power. it would be 3 to the 6th power
Detecting...<span>
</span>Your answer would be:
$0.54 x 2.6 =$1.404
$1.28 x 3.1=$3.968
$1.404 rounds to $1.40
$3.968 rounds to $4
$4 = $ 1.40 = $5.40
:)