The length of a rectangle is 6 meters longer than the width,

The length of a rectangle is 6 meters longer than the width, if the
area is 21 square meters, find the rectangles dimensions. Round to the nearest tenth of a meter.

find the length and the width

 
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A company that manufactures mountain bikes makes a daily profit

A company that manufactures mountain bikes makes a daily profit p
according to the equation p equals negative 100 x squared plus 4700 x minus 50 comma 601

p=−100×2+4700x−50,601​, where p is measured in dollars and x is the number of mountain bikes made per day. Find the number of mountain bikes that must be made each day to produce a zero profit for the company.

 
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The length of a rectangle is meters longer than the width

The length of a rectangle is meters longer than the width. If the area is 33
3 square​ meters, find the​ rectangle’s dimensions. Round to the nearest tenth of a meter

 
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The height s of a ball after (t) seconds when thrown straight up

The height s of a ball after (t) seconds when thrown straight up with
an initial speed of 70 feet per second from an initial height of 5 feet can be modeled by the function

s(t) = −16t^2 +70t + 5.

​(a) When will the height of the ball be 50 feet?
​(b) When will the height of the ball be 70 feet?
​(c) Will the ball ever reach a height of 150 feet?

 
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