Question 43

Question

A square is altered so that one dimension is increased by 5 meters and the other dimension is increased by 3 meters. If the area of the resulting rectangle is 99 square meters, find the area of the original square. Just type the number.
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1 point
Question 44
The length of a rectangle is seven less than twice the length of its width. If the area of the rectangle is 15 square meters, find the value of x. Just type the number.
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1 point
Question 45
April shoots an arrow upward at a speed of 80 feet per second from a platform 25 feet high. The pathway of the arrow can be represented by the equation below, where "h" is the height and "t" is the time in seconds. What is the maximum height of the arrow?
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1 point
Captionless Image
80 feet
90 feet
125 feet
140 feet
Question 46
A rock is dropped from a bridge 320 feet above a river. The pathway that the rock takes can be modeled by the equation below. How long will it take the rock to reach the river?
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1 point
Captionless Image
2.5 seconds
3.5 seconds
3.8 seconds
4.5 seconds

Answer 1

Question 43: 64

Question 44: 9

Question 45: 125 feet

Question 46: 4.5 seconds