Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. - 
B. - 
C. -24
D. -7
Answer: A
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Find the local extrema of the function, if they exist.f(x) = 
A. Local minimum at (0, -2) B. No local extrema exist C. Local maximum at (0, -2) D. Local maximum at (0, 2)
Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m
Solve the problem.A plane suddenly experiences turbulence while in flight. At this point the change in its altitude, in feet, is represented by the following function of time:F(t) = 
. Assuming that the turbulence first hits at time t = 0, what is the maximum relative drop the plane will experience due to turbulence? (Round the result to the nearest hundredth.)
A. 23.19 ft. B. 10.21 ft. C. 1.41 ft. D. 0.25 ft.
Find the difference.-11.0 - (-8.5)
A. -2.5 B. 2.5 C. 19.5 D. -19.5