Simplify.-(-|-(-7)|)
A. -7
B. -1
C. 1
D. 7
Answer: D
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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a unit vector pointing away from the origin.
A. xi + yj
B. 
C. - 
D. 
Provide an appropriate response.Solve the inequality: 2 < x + 6 < 9
A. x < -4 or x > 3 B. 2 < x < 3 C. 8 < x < 15 D. -4 < x < 3
Use proportions to solve the problem.Jim drove 165 miles in 3 hours. If he can keep the same pace, how long will it take him to drive 
A. 34 hr B. 48 hr C. 24 hr D. 495 hr
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 as a linear combination of the standard unit vectors i and j.
A. 
B. 
i - 
j
C. 
i - 
j
D. 
i - 
j