Write a quadratic equation in the form ax2 + bx + c = 0 that has the given numbers as solutions.-2, 9

A. x2 - 18x + 7 = 0
B. x2 + 7x - 18 = 0
C. x2 - 7x - 18 = 0
D. x2 - 18x - 7 = 0


Answer: C

Mathematics

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Find the indicated root and express the answer in standard form.Cube roots of 8i

A. 2i,  - i, -  - i
B. -2i, -  - i,  - i
C. 2i,  + i, -  + i
D. -2i,  + i, -  + i

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Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.11 + 14 + 17 + 20 + . . . + 35

A.
B.
C.
D.

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Solve the equation.4-x = 

A.
B. {-2}
C.
D. {2}

Mathematics

Write the expression in lowest terms.

A. 3k2 B. 10 C. 10k2 D. 3k

Mathematics