Algebra Questions
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1. a red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second and its height t seconds after it is tossed is -16t to second power + 96 f feet. The green ball is given an initial velocity of 80 ft per second , and its height t seconds after it is tossed is - 16 t to the second power + 80t feet.
a. find a plynomial D(t) that represents the difference in the heights of the two balls.
b. how much higher is the red ball 2 seconds after the balls are tossed?
c. In reality, when does the difference in the heights stop increasing?
2. If the diameter of a circle is 1.3 x 10 to the -12 power meters, then what is its radius.
3.The width of a rectangle playground is 2x - 5 feet, and the length is 2x + 9 feet. Write a polynomial P(x) that represents the perimeter and then evaluate this perimeter polynomial if x is 4 feet.
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