Find the unit vector in the direction of the given vector. Write your answer in the indicated form.Let u = 
. Find the unit vector in the direction of u, and write your answer in component form.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Suppose that a radio transmission pattern can be modeled by 
for 
where the units are miles. Determine how far the signal reaches to the east, assuming that east is represented by the direction of the positive 
A. 360 miles B. 64,800 miles C. 32,400 miles D. 180 miles
Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.x2 + 5x = -3
A. -0.697, -4.303 B. 4.303, 0.697 C. 0.541, -5.541 D. -3.197, -3.197
Solve the problem.A store has 15
pounds of short grain rice in stock at the beginning of the day and sells 2
pounds during the course of the day. How many pounds of short grain rice remain at the end of the day?
A. 13
lb
B. 12 lb
C. 11
lb
D. 12
lb
Find the inclination 
(in radians and degrees) of the line. Round your answer to four decimal places for radians and round your answer to one decimal places for degree.
?
?
A. ?
B. 
C. 
?
D. 
E. 