Solve the problem.The distance from the downtown station to the last stop on a commuter railroad line is 18 miles. The distance between stops is about 1.5 miles. How many stops are there?
A. 13 stops
B. 11 stops
C. 6 stops
D. 12 stops
Answer: D
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 2ln
j + 
k
A. a(1) = 20i + 
j - 12k
B. a(1) = 20i - 2j - 12k
C. a(1) = 20i + 2j + 12k
D. a(1) = 20i + 
j + 12k
Find the point(s) at which the given function equals its average value on the given interval.f(x) = 3 - x2; [-6, 3]
A. 
B. ±2
C. ±
D. ±3
Solve the problem.A fire truck is en route to an address that is 6 blocks east and 11 blocks south of the fire station. Using the fire station as the pole and the east direction as the polar axis, express the fire truck's destination in polar coordinates. Round the coordinates to the nearest hundredth. Express ? in degrees.
A. (4.12, -28.61°) B. (4.12, -61.39°) C. (12.53, -61.39°) D. (12.53, -28.61°)
Solve the equation.
+ 
= -1
A. 
B. {1}
C. ?
D. {0}