Determine the domain and range of the function 
.
?
A. domain: 
range: 
B. domain:
range: 
C. domain:
range: 
D. domain:
range: ?
E. domain:
range: 
Answer: B
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Find the centroid of the thin plate bounded by the graphs of the given functions. Use ? = 1 and M = area of the region covered by the plate.g(x) = x2 and f(x) = x + 2
A. 
= 
, 
= 2
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 2, 
= 
Solve the initial value problem for y as a function of x.
= 1, x > 8, y(16) = ln (2 + 8
)
A. y = 
ln 
+ ln 8
B. y = ln 
+ ln (2 + 8
)
C. y = ln (x + 
) + ln (2 + 8
)
D. y = ln (x + 
) + ln (2 + 8
) - ln (16 + 8
)
Solve the problems.Students enrolled in a prealgebra class can withdraw within the first two weeks without receiving a grade. If there were 32 students registered for class on the first day and 27 remaining at the end of the second week, what was the percent decrease in students for the first two weeks? Round to the nearest tenth of a percent, if necessary.
A. 84.4% B. 15.6% C. 81.5% D. 18.5%
Solve the equation.
+ 9 = 8
A. -1 B. 289 C. 1 D. No solution