Find a quadratic equation with integer coefficients that has the given solution set.

A. 4x2 - 25x - 21 = 0
B. 4x2 + 25x - 21 = 0
C. 4x2 + 32x + 21 = 0
D. x2 - 25x - 21 = 0


Answer: B

Mathematics

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A. - 
B.
C. -2
D. 2

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A.

B.

C.

D.

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Perform the indicated operation. Write the answer without exponents.(7 × 10-4) × (3 × 103) × (3 × 104)

A. 63,000 B. 63 × 10-48 C. 6300 D. 63 × 103

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Evaluate the square root.

A.
B. 4
C. 256
D. Not a real number

Mathematics