Simplify the expression.
A. sin x
B. -cos2x
C. csc x
D. -sec x
Answer: C
Mathematics
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Factor the square of the binomial.36x2 - 60x + 25
A. (6x - 5)2 B. (6x + 25)2 C. (6x - 5)(6x + 5) D. (6x + 5)2
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Find the logarithm using the change-of-base formula.log40 58.22
A. 1.4555 B. 0.9076 C. 1.7651 D. 1.1018
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Perform the indicated operations. Write the resulting polynomial in standard form.(x2 + 1) - (6x2 - 7) + (x2 + x + 7)
A. -5x2 + x + 15 B. -6x2 + x + 15 C. -4x2 + x + 15 D. -4x2 - 6x + 8
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Perform the indicated operations. Write the resulting polynomial in standard form.(7x7 + 5x4 - 4) - (2x7 + 9x4 + 14)
A. 5x7 - 4x4 - 18 B. -17x11 C. 5x7 - 4x4 + 10 D. 5x7 + 7x4 + 10
Mathematics