Simplify. If the answer is not a real number, state so. Assume all variables represent non-negative real numbers.
A. -4
B. - 
C. 4
D. not a real number
Answer: A
Mathematics
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Provide an appropriate response.Find the mistake in the following problem: 54 × 53 = 257
What will be an ideal response?
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Write the number in standard form.The Johnsons have driven their car forty-two thousand, eight hundred two miles in the last few years.
A. 42,802 B. 4,282 C. 42,820 D. 420,802
Mathematics
Solve.20 = 6x - 10
A. x = 28 B. x = 5 C. x = 13 D. x = 24
Mathematics
Solve the inequality.For the function f(x) = x2 - 13x + 42, solve f(x) > 0.
A. (6, 7) B. (-?, 6) ? (7, ?) C. (-?, 6) D. (7, ?)
Mathematics