Write the expression as the sum or difference of single logarithms.log2
A. log2(17
) - log2s
B. log217 + 
log2r - log2s
C. log2s - log217 - 
log2r
D. log217 ? 
log2m ÷ log2s
Answer: B
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Convert as indicated. When necessary, round to the nearest tenth of a degree.A weather forecaster has predicted a high temperature of 33° C for tomorrow. Find this temperature in degrees Fahrenheit.
A. 27.4° F B. 91.4° F C. 50.3° F D. -13.7° F
Answer the question about the given function.Given the function f(x) = 
, is the point (-1, - 
) on the graph of f?
A. Yes B. No
Solve the system for x and y using Cramer's rule. Assume a and b are nonzero constants.x + by = a2x + ay = b2
A. {(a2 + ab + b2, a + b)} B. {(a2 + 2ab + b2, -b - a)} C. {(a2 + ab + b2, -b - a)} D. {(a2 + 2ab + b2, b - a)}
Solve the equation by completing the square.-x2 + 2x = -1
A. {1, 2}
B. 
C. {-1 ± 
}
D. {1 ± 
}