Find the numerical value of the rational expression for the given value of x.
, x = -3
A. 
B. - 
C. 
D. - 
Answer: C
Mathematics
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Find the inverse of the function.f(x) = 
, x ? 8
A. f-1(x) = x2 - 8, x ? 0 B. f-1(x) = x2 + 8, x ? 0 C. f-1(x) = x + 8, x ? 0 D. Not a one-to-one function
Mathematics
If r(t) = 3i+5t cos ?tj+2 sin ?tk, evaluate  Figure 3.png)
r(t)dt.
What will be an ideal response?
Mathematics
Solve the problem.A new car dealership sold 270 cars in 2010, and sales are increasing by about 58 cars per year. Let s be the number of cars sold in the year that is t years since 2010. Find an equation for a linear model to describe this situation. Then solve that equation for t.
A. t = 
B. t = 
C. t = 
D. t = 
Mathematics
Round to the nearest hundredth.1.721
A. 1.7 B. 1.73 C. 1.71 D. 1.72
Mathematics