Write as the sum and/or difference of logarithms. Express powers as factors.log2
A. 7log2x -log2(x + 2)
B. log2(x + 2) - 7log2x
C. log2(x + 2) + 7log2x
D. log2(x + 2) -log2x
Answer: B
Mathematics
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Graph the parabola whose equation is given.f(x) = x2 - 1
A. 
B. 
C. 
D. 
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Solve the problem.How long will it take for $1000 to grow to $27,100 at an interest rate of 8.5% if the interest is compounded continuously? Round the number of years to the nearest hundredth.
A. 0.39 yr B. 3.88 yr C. 38.82 yr D. 3881.8 yr
Mathematics
Use the provided graph or table to evaluate the given expression.f(-2?)
A. Undefined B. -2 C. -3 D. 3
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Evaluate the expression without using a calculator.log2212
A. 12 B. 14 C. log212 D. 2
Mathematics