Simplify.
A. -a
B. - 
C. a
D. - 
Answer: B
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Calculate the direction of 
and the midpoint of line segment P1P2.P1(8, -6, 4) and P2(9, -7, 5)
A. 
i + 
j + 
k; 
B. 
i - 
j + 
k; 
C. 
i - 
j + 
k; 
D. 
i - 
j + 
k; 
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
a = 50.26 ft, c = 231 ftRound the missing side length to two decimal places.
A. A = 13° 34', B = 76° 26', b = 225.47 ft B. A = 12° 34', B = 77° 26', b =209.69 ft C. A = 10° 34', B = 79° 26', b = 236.74 ft D. A = 12° 34'; B = 77° 26'; b = 225.47 ft
Choose the ordered pair which is a solution of the inequality.2x + 4y > 8(0, 1), (0, 0), (2, 1), (2, 2)
A. (2, 1) B. (0, 0) C. (2, 2) D. (0, 1)
Factor the GCF from the polynomial.10x - 40
A. 10(x - 40) B. 10(x - 4) C. 10(x + 4) D. 4(x - 10)