Simplify the following by combining like terms.- 
x2 - 
x - 
+ - 
x2 - 
x + 
A. - 
x6 + 
B. - 
x2 - 
x - 
C. - 
x4 - 
x2 + 
D. - 
x2 - 
x + 
Answer: D
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An observer for a radar station is located at the origin of a coordinate system. For the point given, find the bearing of an airplane located at that point. Express the bearing using both methods.(9, 0)
A. 270°; N 90° E or S 90° E B. 270°; N 90° W or S 90° W C. 90°; N 90° E or S 90° E D. 90°; N 90° W or S 90° W
Find the distance between the pair of points. Give an exact answer, and where appropriate, an approximation to three decimal places.(-2.3, 1.0) and (-4.5, 2.8)
A. 10.288 B. 7.790 C. 8.127 D. 2.843
Solve the inequality.
?
?
A. 
B. 
C. 
D. 
E. 
Solve the problem.x represents the number of textbooks purchased at $58 per book, and y represents the total amount of money spent on textbooks. After writing an equation for this situation, what is the cost of 4 textbooks?
A. $464 B. $116.00 C. $232 D. $14.50