Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = 3x3 - 2
A. f-1(x) = 
B. f-1(x) = 
+ 2
C. Not one-to-one
D. f-1(x) = 
Answer: A
Mathematics
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Completely factor the polynomial or state that the polynomial is prime.50x2 - 160x + 128
A. prime B. 2(5x + 8)2 C. 2(5x - 8)2 D. 2(5x - 8)(5x + 8)
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Use a trigonometric substitution to evaluate the integral.
A. -0.155 B. 0.464 C. 0.117 D. 0.155
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Find the slope of the line containing the two points.(6, -8) and (-2, 9)
A. 
B. 
C. - 
D. - 
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Solve.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 20 mph B. 40 mph C. 50 mph D. 80 mph
Mathematics