Find the intersection.x = -3 - 5t, y = 7 + 2t, z = 4 + 2t ; -6x - 8y - 3z = 8
A. (-8, 9, 6)
B. 
C. (2, 5, 2)
D. 
Answer: D
Mathematics
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Find the reciprocal.7
A. 1
B. 
C. 
D. 7
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Find the derivative of f at the given point.f(x) = 5x2 + x at x = -4
A. -41 B. -14 C. -39 D. 6
Mathematics
Sketch the graph of the function.y = cos (-3?x)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 61 coins in all, valued at $5.10. The number of nickels is 7 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 9 B. 44 C. 14 D. 8
Mathematics