Polar coordinates of a point are given. Use a graphing utility to find the rectangular coordinates of the point to two decimal places.
A. (1.61, 1.35)
B. (-1.35, 1.61)
C. (1.61, -1.35)
D. (1.35, 1.61)
Answer: C
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (cos 3t)i + (2 sin t)j
A. a = (-9 cos 3t)i + (-4 sin t)j B. a = (-9 cos 3t)i + (-2 sin t)j C. a = (9 cos 3t)i + (-2 sin t)j D. a = (-3 cos 3t)i + (2 sin t)j
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A. Increasing: (x < -1.75), Decreasing: (x > -1.75) B. Increasing: (x < 1.75), Decreasing: (x > 1.75) C. Increasing: (x < 6.9), Decreasing: (x > 6.9) D. Increasing: (x < 6.2875), Decreasing: (x > 6.2875)
Suppose the time intervals in seconds between arrivals of successive cars at an expressway tollbooth during rush hour are exponentially distributed with associated probability density function 
.
?
Find the probability that the average time interval between arrivals of successive cars is more than 3 sec. Give the answer to four decimal places, if necessary.
Fill in the blank(s) with the appropriate word(s).
Give the equation of the horizontal asymptote, if any, of the function.f(x) = 
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