Evaluate the polynomial.2x5 + 4x4 + 5x3 - x2 for x = -2
A. -49
B. -48
C. -44
D. -15
Answer: C
Mathematics
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln(cos(ln ?))
A. - 
B. -tan(ln ?)
C. tan(ln ?)
D. 
Mathematics
Find the least common multiple of the numbers in the group.45, 56, 150
A. 1,050 B. 2520 C. 12,600 D. 1260
Mathematics
Factor by grouping.10x4 + 15x2 + 8x2 + 12
A. (5x2 - 4)(2x2 - 3) B. (5x4 + 4)(2x + 3) C. (10x2 - 4)(x2 - 3) D. (5x2 + 4)(2x2 + 3)
Mathematics
Solve the problem.Mardi received an inheritance of $50,000. She invested part at 8% and deposited the remainder in tax-free bonds at 9%. Her total annual income from the investments was $4100. Find the amount invested at 8%.
A. $40,000 B. $45,900 C. $20,000 D. $39,000
Mathematics