Express as a sum of logarithms.log2 xy
A. log2 x - log2 y
B. log2 x + log2 y
C. log1 x - log1y
D. log1 x + log1 y
Answer: B
Mathematics
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A. ?Using a grid system. B. ?Using a grid system, and then enlarging/shrinking it for the dilation. C. ?Determining the constant of proportionality. D. ?Find a missing length, given a conversion factor. E. ?None of the above.
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Multiply by using the rule for the square of a binomial.(x + 4)2
A. x + 16 B. x2 + 16 C. x2 + 8x + 16 D. 16x2 + 8x + 16
Mathematics
Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. 
B. 
C. 1
D. -1
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Find the sum.
A. 363 B. 364 C. 202 D. 355
Mathematics