Rationalize the denominator. Assume that no radicands were formed by raising negative numbers to even powers. 
A. 1
B. 
C. 
D. 
Answer: C
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Solve the equation.-6m + 17 = -7m + 15
A. {-1} B. {-3} C. {-2} D. {17}
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Solve the problem.The sound produced by touching each button on a touch-tone phone is described by y = sin 2?lt + sin 2?htwhere l and h are the low and high frequencies (cycles per second) in the figure shown.
Describe the sound emitted by touching the 3 key as a product of sines and cosines.
A. y = 2 sin(512?t) cos(1906?t) B. y = 2 sin(2174?t) cos(780?t) C. y = 2 sin(1906?t) cos(512?t) D. y = 2 sin(780?t) cos(2174?t)
Solve the problem.Two boats leave a dock at the same time. One boat is headed directly east at a constant speed of 35 knots (nautical miles per hour), and the other is headed directly south at a constant speed of 22 knots. Express the distance d between the boats as a function of the time t.
Fill in the blank(s) with the appropriate word(s).