Mathematics, 30.09.2021 01:00, tredagoat20
The area of a rectangle is 84 inches. It has a length of x−2 and a width of x+3. What are the dimensions of the rectangle?
A. −11 inches and −6 inches
B. 8 inches by 13 inches
C. 7 inches by 12 inches
D. −12 inches by −7 inches
A rocket is fired upward from the ground with an initial velocity of 200 feet per second. Neglecting air resistance, the height of the rocket at any time, t, can be described in feet by the equation H=−16t^2+200t. Find the height of the rocket at t=3 seconds.
A. The height of the rocket is 648 feet.
B. The height of the rocket is 552 feet.
C. The height of the rocket is 456 feet.
D. The height of the rocket is 744 feet.
A hang glider pilot accidentally drops her compass from the top of a 400-foot cliff. The height h of the compass after t seconds is given by the quadratic equation h=−16t2+400. When will the compass hit the ground?
A. The compass will hit the ground after 6 seconds.
B. The compass will hit the ground after 5 seconds.
C. The compass will hit the ground after 4 seconds.
D. The compass will hit the ground after −5 seconds. (what? -seconds? is that a thing? that seems wack)
Answers: 2
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The area of a rectangle is 84 inches. It has a length of x−2 and a width of x+3. What are the dimens...
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