Provide an appropriate response.State whether the following situation represents direct variation, inverse variation, or neither: The cost of mailing a letter within the United States and the distance that it travelsGive a reason for your answer.
What will be an ideal response?
Neither. The cost of mailing a letter within the United States is not affected by the distance that it travels.
Mathematics
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Use the transformation  figures 4.png)
to evaluate the integral  FIGURE 1.png)
(x² - xy + y²) dA, where R is the region bounded by the ellipse x² - xy + y² =2.
What will be an ideal response?
Mathematics
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 7
- 5x
A. 7
- 5x
B. 2x
C. 12
D. 2x
Mathematics
Rewrite using a positive exponent. Evaluate, if possible.
? 
? 
? 
A. 
4
B. (4)1/2
C. 
D. (2)4
Mathematics
Subtract and, if possible, simplify.
- 
A. 
B. 
C. 
D. 
Mathematics