Solve the problem.A formula relating an athlete's vertical leap V, in inches, to hang time T, in seconds, is V= 48T2. A professional basketball player has a vertical leap of 32 inches. What is his hang time? Round your answer to the nearest tenth of a second.
A. 0.9 sec
B. 0.5 sec
C. 0.7 sec
D. 0.8 sec
Answer: D
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Provide an appropriate response.For x > 0, sketch a curve y = f(x) that has f(1) = 0 and f'(x) = - 
. Can anything be said about the concavity of such a curve? Give reasons for your answer.
What will be an ideal response?
Solve the problem.Jon has 799 points in his math class. He must have 80% of the 1100 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
A. 81 points B. 880 points C. 639 points D. 301 points
Replace the polar equation with an equivalent Cartesian equation.r2 + 2r2 sin ? cos ? = 484
A. x2 + 3y2 = 484 B. x + y = ±22 C. x + y = 22 D. x2 + y2 = 484
Determine whether the statement is true or false.cos 135° = cos 225° cos 90° + sin 225° sin 90°
A. True B. False