Solve the problem.Find parametric equations for an object that moves along the ellipse 
+ 
= 1 with the motion described.The motion begins at (0, 4), is clockwise, and requires 2 seconds for a complete revolution.
A. x = 2 sin (2?t), y = 4 cos (2?t), 0 ? t ? 2
B. x = 2 sin (?t), y = 4 cos (?t), 0 ? t ? 2
C. x = 2 sin (?t), y = -4 cos (?t), 0 ? t ? 2
D. x = 2 cos (?t), y = 4 sin (?t), 0 ? t ? 2
Answer: B
Mathematics
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Suppose 
is a linear function of 
. The slope is 2.39. A decrease of 7 units in 
causes what change
in 
?
?
A. A decrease of 16.73 units
B. An increase of 16.73 units
C. An increase of 2.9288702929 units
D. A decrease of 2.9288702929 units
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Convert the units.42,240 ft = 
mi
A. 8 B. 9 C. 8.5 D. 211.2
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Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
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Graph the integer on a number line.10
A. 
B. 
C. 
D. 
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