Parametric equations 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 = 49t2, y = 7t, -? ? t ? ?
A. y = x2
Entire parabola, right to left (from first quadrant to origin to second quadrant)
B. x = y2
Entire parabola, top to bottom (from first quadrant to origin to fourth quadrant)
C. y = x2
Entire parabola, left to right (from second quadrant to origin to first quadrant)
D. x = y2
Entire parabola, bottom to top (from fourth quadrant to origin to first quadrant)
Answer: D
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Write the first four elements of the sequence. 
n
A. 2, 
, 
, 
B. 0, 2, 
, 
C. 0, 1, 
, 
D. 1, 
, 
, 
Discuss the symmetry of the graph of the polynomial function.f(x) = x7 - x
A. Symmetric about y-axis B. None C. Symmetric about origin D. Symmetric about x-axis
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Solve the problem.Find the effective rate if the nominal rate is 3.5% and interest is compounded quarterly. (If r is the nominal rate and n is the number of times interest is compounded annually, then R = 
n - 1 is the effective rate.) Round to the nearest hundredth of a percent.
A. R = 3.55% B. R = 4.05% C. R = 3.30% D. R = 3.80%