Factor.28 + 39x + 5x2
A. (5x + 4)(x + 7)
B. (x + 4)(x + 7)
C. (x - 21)(x + 7)
D. (5x - 21)(x + 7)
Answer: A
Mathematics
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Evaluate to four decimal places using a calculator.e1.539
A. 2.3685 B. 7.3891 C. 4.1834 D. 4.6599
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Simplify the square root. Assume all variables represent nonnegative real numbers.
A. 3
B. 6x32
C. 3x32
D. 3x8
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Solve the equation. Express radicals in simplest form.(x - 5)2 = 16
A. 4, -4 B. 21 C. 9, 1 D. 1, -9
Mathematics
Solve the problem.One number is four more than a second number. Two times the first number is 8 more than four times the second number.
A. 4 and 0 B. 3 and - 1 C. 5 and 1 D. - 8 and - 12
Mathematics