Simplify the expression. If the expression cannot be simplified, so state.(7z + 12) - (4z - 6)

A. 3z + 18
B. 3z + 6
C. 3z - 18
D. 11z + 18

Answer: A

Mathematics

Evaluate the integral by using multiple substitutions. dx

A. sin⁶ (x³ - 7x)+ C
B. 2 sin⁶ (x³ - 7x) + C
C. cos⁶ (3x²) + C
D. 15 sin⁴ (x³ - 7x) + C

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Mathematics

Determine whether the lines with the given slopes are parallel, perpendicular, or neither. ? ?

A. parallel B. perpendicular C. neither

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Mathematics

Divide and simplify. Assume that all variables represent positive numbers.

A. 8
B. 8x⁴
C. 8x⁸
D. 8x⁴

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Mathematics

Write the rational expression in lowest terms.

A. -4xy3 B. -4x2y3 C. -15x2y2 D. -4x2y2

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Mathematics