Simplify using order of operations.-|108| ÷ (-|9|) ÷ (-6) ? 10 ÷ (-|-5|)
A. -4
B. 4
C. -144
D. 144
Answer: B
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Solve the problem.An airplane flies on a compass heading due north at 430 mph. The wind affecting the plane is blowing from 298° at 31.0 mph. What is the true course and ground speed of the airplane? Round results to an appropriate number of significant digits.
A. 92°, 458 mph B. 86°, 445 mph C. 87°, 458 mph D. 92°, 445 mph
The triangles are similar. Find the missing length x and the missing angles A, B, C. 
A. x = 27 units; A = 38°; B = 97°; C = 45° B. x = 9 units; A = 97°; B = 38°; C = 45° C. x = 27 units; A = 97°; B = 38°; C = 45° D. x = 9 units; A = 45°; B = 38°; C = 97°
Solve the inequality algebraically. Express the solution in interval notation.
? 4
A. (-5, 7] B. (-5, 23) C. (-5, 23] D. (-5, 7)
Add.-20 + (-7)
A. 27 B. -27 C. 13 D. -13