Solve the problem.A fire is sighted due west of lookout A. The bearing of the fire from lookout B, 8.5 miles due south of A, is N 54.18°W. How far is the fire from B (to the nearest tenth of a mile)?
A. 15.5 mi
B. 14.5 mi
C. 16.5 mi
D. 17.5 mi
Answer: B
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Solve.The inmedance Z in an alternating current circuit (like the one used in your home and in your classroom) is given by the formula Z = 
, where V is the voltage and I is the current. Find the value of Z if 
and 
A. 
+ 3i
B. -3 + 
i
C. 3 - 
i
D. - 
- 3i
Find the slope of the line through the given pair of points, if possible. Based on the slope, indicate whether the line through the points rises from left to right, falls from left to right, is horizontal, or is vertical.(-4, -7) and (8, 9)
A. 
; rises
B. - 
; falls
C. 
; rises
D. - 
; falls
Solve.log3x = -2
A. 
B. 
C. {1}
D. {-6}
Write a system of equations to describe the problem situation. Use guess and check to solve the problem.
A boat travels 12 miles upstream to a fishing spot. The trip takes 1.2 hours. The return trip, downstream, takes 0.8 hour. Find the speed of the current, c. A) c = 2.0 mph B) c = 2.5 mph C) c = 2.8 mph D) c = 3.0 mph E) c = 3.5 mph