Evaluate the expression.(-7)2 - (-2)2
A. 25
B. 45
C. 10
D. -10
Answer: B
Mathematics
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Simplify the expression using the products-to-powers rule.(5x)2
A. 25x B. 25x2 C. 10x D. 10x2
Mathematics
Find y '.y = (x2 - 5x + 2)(5x3 - x2 + 5)
A. 25x4 - 104x3 + 45x2 + 6x - 25 B. 5x4 - 100x3 + 45x2 + 6x - 25 C. 25x4 - 100x3 + 45x2 + 6x - 25 D. 5x4 - 104x3 + 45x2 + 6x - 25
Mathematics
Graph the pair of parametric equations with the aid of a graphing calculator.x = cos t + 4 cos 3t, y = 5 cos t - 4 sin 3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 40 mi B. 20 mi C. 6.3 mi D. 10 mi
Mathematics