Factor.7r3 - 448
A. 7(r - 28)(r2 + 28r + 112)
B. 7(r - 4)(r2 + 4r + 16)
C. 7(r - 4)(r2 - 4r + 16)
D. 7(r + 4)(r2 - 4r + 16)
Answer: B
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Write the Egyptian numeral as a Hindu-Arabic numeral.
A. 240,005 B. 2405 C. 2,000,045 D. 245
Solve by the substitution method.x + 6y = -62x + 7y = -12
A. {(-6, 0)} B. {(6, -1)} C. {(x, y)|x + 6y = -6} D. ?
Provide an appropriate response.Finish the statement with a correct response. To divide two fractions one needs to:
A. Use the reciprocal of the second fraction (divisor), add the numerators and multiply the denominators. B. Use the reciprocal of the second fraction (divisor) and multiply. C. Add the numerators and multiply the denominators. D. Add the numerators and factor the denominators.
Factor. Check by multiplying.7 + 70a + 63b
A. 7(0 + 10a + 9b) B. 70(1 + a + b) C. 7(1 + 70a + 63b) D. 7(1 + 10a + 9b)