Determine whether the equation defines y as a function of x.4x = 3 - 2y
A. Yes
B. No
Answer: A
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Solve the inequality 
. Restrict your attention to positive values of x. Round your answer to two decimal places.
?
A. 
B. The inequality is always true.
C. ?
D. The inequality is never true.
Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 45
B. 
C. 
D. 
Write as the sum and/or difference of logarithms. Express powers as factors. log10
A. 
log10m + 
log10n - 
log10k
B. 
log10m + 
log10n - 2log10k
C. 
log10m ? 
log10n ÷ 2log10k
D. 7log10m + 9log10n - 2log10k
Provide an appropriate response.The life (in hours) of light bulbs of a certain brand is normally distributed with mean 1200 and standard deviation 100. What percentage of such bulbs will burn more than 1250 hours?
A. 20.47 B. 41.73 C. 30.85 D. 48.26 E. 13.62