Solve for x.log10 9 + log10 x = 1
A. 
B. 
C. 
D. 
Answer: D
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Write as the sum and/or difference of logarithms. Express powers as factors.ln 
A. 
ln y + 
B. 6 ln y + 6
C. 
ln 
+ 
D. 
Solve the system of equations (only real solutions) by the elimination method. Check your solutions.
A. {(4, -2), (4, 2)} B. {(4, 2), (-4, 2), (4, -2), (-4, -2)} C. {(4, 2), (2, 4), (-4, -2), (-2, -4)} D. {(-4, -2), (-2, -4)}
List the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = -4x4 + 2x2 - 3x + 6
A. ± 
, ± 
, ± 
, ± 
, ± 
, ± 1, ± 2, ± 4
B. ± 
, ± 
, ± 
, ± 
, ± 1, ± 2, ± 3, ± 4, ± 6
C. ± 
, ± 
, ± 
, ± 
, ± 
, ± 1, ± 2, ± 3, ± 6
D. ± 
, ± 
, ± 
, ± 
, ± 1, ± 2, ± 3, ± 6
Solve the problem.From a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men in the delegation?
A. .48 B. 1 C. .57 D. .86