Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. x-axis
B. Origin
C. y-axis
D. x-axis, origin
Answer: C
Mathematics
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos
A. 0
B. 
C. 1
D. No limit
Mathematics
Given that the forces  figure 1.png)
are acting on a point P , find the resultant force.
 figure 2.png)
Mathematics
Use a calculator to find the sum. Round to four decimal places.
A. 5.7869 B. 8.7869 C. 0.3 D. 3.2869 E. 2.9869
Mathematics
Solve the problem.When you buy an item on which sales tax is charged, the total cost is calculated by the formula: 
where T is the total cost, P is the item's price, and S is the sales tax rate (as a percent). If you pay $20.9 for an item priced at $20, what was the tax rate?
A. 2.25% B. 4.5% C. 5.5% D. 6.5%
Mathematics