Use the square root property to solve the equation.3x2 = 21
A. 8
B. ±7
C. ±
D. 10.5
Answer: C
Mathematics
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A. Not conservative B. Conservative
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Solve the polynomial inequality. Express the solution using interval notation.x2 + 7x + 12 > 0
A. (-3, ?) B. (-4, -3) C. (-?, -4) D. (-?, -4) ? (-3, ?)
Mathematics
Find the one-sided limit.
(2 cos x)
A. 2 B. -2 C. 0 D. does not exist
Mathematics