Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-5x5)(3x4)
A. 8x9
B. 8x20
C. -15x20
D. -15x9
Answer: D
Mathematics
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_____ 8.624
A. < B. = C. >
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Round as indicated.807 to the nearest ten
A. 910 B. 820 C. 800 D. 810
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Factor the difference of two squares.81x2 - 121y2
A. (9x - 11y)2 B. (9x + 11y)(9x - 11y) C. (9x + 11y)2 D. prime
Mathematics
Solve the problem.License plates are made using 3 letters followed by 3 digits. How many plates can be made if repetition of letters and digits is allowed?
A. 1,757,600 B. 1,000,000 C. 308,915,776 D. 17,576,000
Mathematics