Solve the equation.10y = 6y + 7 + 3y
A. {70}
B. {7}
C. {-7}
D. {-70}
Answer: B
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Find y '.y = (4x3 + 3)(4x7 - 4)
A. 160x9 + 84x6 - 48x2 B. 160x9 + 84x6 - 48x C. 16x9 + 84x6 - 48x D. 16x9 + 84x6 - 48x2
Find the product.(5x - 7y)2
A. 25x2 - 70xy + 49y2 B. 25x2 + 49y2 C. 5x2 + 49y2 D. 5x2 - 70xy + 49y2
Solve the problem.The following table shows the average number of practice hours per week, for a sample of professional golfers, along with their average tournament scores per round. 
Determine the correlation coefficient for the hours practiced per week and the average score per round.
A. -0.8841 B. -0.8633 C. -0.8745 D. -0.8984
Solve the equation for solutions in the interval [0°, 360°).cos 2? = 
A. 3 B. ? = 30°, 90°, 150°, 270° C. ? = 0°, 120°, 180°, 240° D. ? = 105°, 165°, 285°, 345° E. ? = 15°, 165°, 195°, 345°