Solve the quadratic equation using the quadratic formula.8x2 + 9x + 5 = 0

A.
B.
C.
D.

Answer: D

Mathematics

Solve the problem.Who am I? If you multiply me by 12 and add 21, the result is 117.

A. 8 B. 1425 C. 72 D. 1656

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Mathematics

Find the exact value of the expression using a sum or difference identity.cos 285°

A. -( - 1)
B. -
C. -( + 1)
D.

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Mathematics

Solve the system for x and y. Show your answer as an ordered pair, (x, y).-7x - 7y = 42-4x + 2y = 12

A. Infinite solutions B. (-5, -1) C. (-4, -1) D. (-4, -2)

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Mathematics

Express as a product.log10

A. 10 log₉5
B. log₁₀5⁹
C. log₁₀5
D. log₉₀5

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Mathematics