Multiply the monomials. Assume any variable exponents represent whole numbers.(-6x3nyn + 2)

A. - x^3n²y^{7n + 14}
B. - x⁴ⁿy^{n + 9}
C. - x³ⁿy^{n + 9}
D. - x⁴ⁿy^{2n + 9}

Answer: B

Mathematics

Find the angle between v and w. Round to one decimal place, if necessary.v = i + j and w = i + j - k

A. 0° B. 66° C. 90° D. 35.3°

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Mathematics

State the value of the discriminant and the number of real solutions.5y2 = -8y - 6

A. 0, one B. -56, no real solutions C. 56, two D. 56, one

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Mathematics

Add or subtract as indicated.- +

A.
B.
C.
D.

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Mathematics

Determine whether the two pairs of numbers are proportional.0.2, 0.3 and 3.5, 4.2

A. No B. Yes

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Mathematics