A ball is tossed upward from the top of a building and allowed to fall to the ground. Its distance D, in feet, above the ground t seconds after the toss is given by
.
A: How tall is the building? Round your answer to whole number.B: What is the maximum height reached by the ball, and when does this occur? Round your answers to two decimal places.C: How long does it take for the ball to hit the ground? Round your answer to two decimal places.
What will be an ideal response?
?A: 51 feet?B: The ball reaches a maximum height of 74.77 feet after 1.22 seconds.?C: 3.38 seconds
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Multiply and simplify.5x
? 3x
A. 45x2 B. 45x2m3 C. 45x2m D. 15x2m
Solve the inequality. Graph the solution set and write it in interval notation.4(4x - 2) - 14 ? 11x - 2
A. [4, ?)
B. (-?, 4] 
C. [-4, ?)
D. (-?, -4]
Research done in the 1930s by the French physiologist Jean Poiseuille showed that the resistance R of a blood vessel of length l and radius r is 
, where k is a constant. Suppose a dose of the drug TPA increases r by 20%. How will this affect the resistance R? Assume that l is constant.
?
It will drop by __________%.
Fill in the blank(s) with the appropriate word(s).
Find the actual difference.-32.05 - 155.24
A. 123.19 B. -187.29 C. 125.44 D. 187.29