Multiply, then simplify the product. Assume that all variables represent positive real numbers.( - )

A. 6 - 18
B. 54 
C. 18 
D. 36 - 6


Answer: C

Mathematics

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Change the complex number to rectangular form. cos 270°

A. 2.646 + 0j B. -2.646 + 0j C. 0 - 2.646j D. 0 + 2.646j

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Write the given set in interval notation and graph the set on a number line.{x|x ? 7}

A. (7, ?)

B. [7, ?)

C. (-?, 7)

D. (-?, 7]

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Factor completely. If the polynomial is prime, state so.x9 - 8y6

A. (x3 + 2y2)(x6 + 2x3y2 + 4y4) B. (x3 - 2y2)(x6 + 2x2y3 + 4y4) C. (x3 - 2y2)(x6 + 2x3y2 + 4y4) D. (x3 - 2y2)(x3 - 2x3y2 - 4y2)

Mathematics

Using complements (with respect to 1) of the single discounts, find the net cost equivalent for the following discount.10/5/20

A. 0.316 B. 0.65 C. 0.684 D. 0.35

Mathematics