Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 25t2, y = 5t, -? ? t ? ?
A. x = y2
Entire parabola, top to bottom (from first quadrant to origin to fourth quadrant)
B. x = y2
Entire parabola, bottom to top (from fourth quadrant to origin to first quadrant)
C. y = x2
Entire parabola, left to right (from second quadrant to origin to first quadrant)
D. y = x2
Entire parabola, right to left (from first quadrant to origin to second quadrant)
Answer: B
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Give an appropriate answer.Let
f(x) = -1 and
g(x) = 5. Find
[f(x) - g(x)].
A. -6 B. 4 C. -1 D. -3
Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083
Find the maximum or minimum value of the given objective function of a linear programming problem. The figure illustrates the graph of feasible points. 
z = -7x - y. Find maximum.
A. maximum: -24 B. maximum: -19 C. maximum: -30 D. no maximum
Solve the problem.The formula A = 
gives the approximate annual interest rate for a consumer loan paid off with monthly payments, where f is the finance charge on the loan, p is the number of payments, and b is the original amount of the loan. Find the approximate annual interest rate for an automobile loan to be repaid in 24 monthly installments if the finance charge on the loan is $490 and the original loan balance is $4730.(Round answer to two decimal places, if necessary.)
A. 10.81% B. 9.09% C. 9.95% D. 10.36%