Use the Negative Exponent Rules to simplify. Write the answer with positive exponents. All variables are nonzero.r-4
A. - 
B. -r4
C. 
D. r1/4
Answer: C
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Which of the following is the best measurement system to estimate the speed of an car? ?
A. ?miles per minute B. ?miles per hour C. ?feet per mile D. feetper minute E. ?miles per second
Solve.A quarterback throws a pass that travels 38 yards with the wind in 2.5 seconds. If he had thrown the same pass against the wind, the football would have traveled 17 yards in 1.5 seconds. Find the speed of the pass that the quarterback would throw if there were no wind. If necessary, round to the nearest tenth.
A. 1.9 yd/sec B. 13.3 yd/sec C. 26.5 yd/sec D. 6.6 yd/sec
The maximum value of 
is always the same as the maximum value of 
.
Answer the following statement true (T) or false (F)
Use "intersect" on a graphing calculator to solve the equation.x + 5 = 9
A. -4 B. 14 C. -14 D. 4