Solve using the quadratic formula.x2 - 4x + 20 = 0
A. 2 ± 4i
B. -2 ± 4i
C. 6, -2
D. 4 ± 8i
Answer: A
Mathematics
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Convert as indicated. Express the answer in decimal form when needed.62 kilometers per hour to miles per hour (Round to the nearest thousandth.)
A. 38.440 mi/hr B. 99.758 mi/hr C. 44.702 mi/hr D. 93.558 mi/hr
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Multiply:
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Solve the system by substitution, if possible.
?
What will be an ideal response?
Mathematics
Determine whether the statement is true or false.-13 ? 22
A. False B. True
Mathematics