Simplify.9 - 4[9 - (9 + 4)]

A. -20
B. 25
C. -7
D. 40

Answer: B

Mathematics

Simplify the expression.

A. - sin2x B. sin x cos2x C. - cos2x D. sin2x

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Mathematics

Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.-

A. 4k³q⁴
B. -4k³q⁴
C. -4k³q⁴
D. 4k⁷q⁸

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Mathematics

Write the expression in word form.4 ? 4 ? 4 ? 4

A. four squared B. four plus four C. four to the fourth power D. four times four

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Mathematics

Solve the equation. = -

A. {9, 18} B. {18} C. {9} D. no solution

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Mathematics