Add 6b² – 10b – 5 and –8b² + 4b – 8.
What will be an ideal response?
–2b² – 6b – 13
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Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.log2(x - 3) - log2(x - 5)
A. log2
B. log2(x2 - 8x + 15)
C. log22
D. log2
Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.75 as soon as you get in the taxi, to which a charge of $2.40 per mile is added. Find an equation that can be used to determine the cost, C, of an x-mile taxi ride.
A. C = 2.40 + 2.75x B. C = 2.75 + 2.40x C. C = 3.65x D. C = 5.15x
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.loga8x3yz5
A. 8 + logay + logaz5 B. 15 loga8xyz C. loga8 - 3 logax - logay - 5 logaz D. loga8 + 3 logax + logay + 5 logaz
Evaluate the expression without using a calculator.16-3/2
A. - 
B. 
C. 64
D. -64