Factor the sum or difference of two cubes.x3 - 27
A. (x - 3)(x2 + 3x + 9)
B. (x - 3)(x2 + 9)
C. (x + 27)(x2 - 1)
D. (x + 3)(x2 - 3x + 9)
Answer: A
Mathematics
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A. 194 B. 84 C. 94 D. 114
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Write the logarithmic equation in its equivalent exponential form.log343 7 = 
A. 3431/7 = 3
B. 31/7 = 343
C. 3431/3 = 7
D. 3433 = 
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Solve the problem.Helen Weller invested $10,000 in an account that pays 10% simple interest. How much additional money must be invested in an account that pays 13% simple interest so that the total interest is equal to the interest on the two investments at the rate of 11%?
A. $5000 B. $7000 C. $10,000 D. $6000
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Evaluate the logarithm without using a calculator.log10 10
A. 1 B. 10 C. 0 D. -1
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