Use the change-of-base formula to rewrite the logarithm as a ratio of logarithms. Then use a
graphing utility to graph the ratio.
?
f(x) = log11.7x
?
A. 
B.
C. f(x) = log x? + log 11.7 = ln x? + ln 11.7
D.
E.
?
Answer: A
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Solve using the problem-solving strategy for systems of linear equations.A retired couple has $170,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 7%. The rest they want to invest in AA bonds yielding 12% per year. How much should they invest in each to realize exactly $18,400 per year?
A. $140,000 at 12% and $30,000 at 7% B. $130,000 at 7% and $40,000 at 12% C. $120,000 at 7% and $50,000 at 12% D. $130,000 at 12% and $40,000 at 7%
Find log 10,000.
A. -4 B. 4 C. -5 D. 5
Solve the equation. Express radicals in simplest form.a2 - 14a + 13 = 0
A. -13, -1
B. 
, - 
C. 13, 1
D. 12, 1
Provide an appropriate response.Identify the radicand, the radical, and the square root of 
= 9.
A. Radicand is 81; radical is 
; square root is 9.
B. Radicand is 9; radical is 
; square root is 81.
C. Radicand is 
; radical is 81; square root is 9.
D. Radicand is 9; radical is 
; square root is 9.