Graph the parametric equation for the given interval. Add arrows to show how the curve is traced out. x = 5 sin t, y = 5 cos t; 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.In solving a system of three equations in three variables, it is impossible to eliminate two variables. Thus, the the final step yields the following equation:x = y + 1.How many solutions does this system have? Explain geometrically.
What will be an ideal response?
Solve the problem.To save for retirement, you decide to deposit $2500 into an IRA at the end of each year for the next 40 years. If the interest rate is 9% per year compounded annually, find the value of the IRA after 40 years. (Round to the nearest dollar.)
A. $30,413,398 B. $844,706 C. $772,666 D. $76,024
Use set notation to identify the shaded region.
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Please enter parentheses to indicate the order of operations.
What will be an ideal response?
Solve the problem.Suppose that sales of a particular brand of appliance satisfy the relationship 
where y represents the number of sales in year x, with 
corresponding to 1992. What does the ordered pair 
mean in the context of the situation? 
A. In 2005, sales of the appliance were 1540. B. In 2005, sales of the appliance were 1460. C. In 2005, sales of the appliance were 3000. D. In 2005, sales of the appliance were 3080.