Solve the problem.Lookout station B is located 5 mi due east of station A. The bearing of a fire from A is S9°10'W and the bearing from B is S39°10'W. Determine the distance from the fire to B (to the nearest tenth of a mile).
A. 6.95 mi
B. 9.9 mi
C. 11.9 mi
D. 4.95 mi
Answer: B
Mathematics
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Find an equation for the line that passes through the given point and satisfies the given conditions.P = (7, 9); perpendicular to v = 6i - 2j
A. 6x - 2y = 40 B. y - 9 = 11(x - 6) C. -2x - 6y = -68 D. 6x - 2y = 24
Mathematics
For the graph of a circular function y = f(x), determine whether f(-x) = f(x) or f(-x) = -f(x) is true.
A. f(-x) = f(x) B. f(-x) = -f(x)
Mathematics
Write the expression in the standard form a + bi.
A. 4 - 1i
B. 
- 
i
C. 
+ 
i
D. 
- 
i
Mathematics
Factor by grouping.5x(2x + 3) + 4(2x + 3)
A. (5x - 4)(2x - 3) B. (10x + 4)(x + 3) C. (10x - 4)(x - 3) D. (5x + 4)(2x + 3)
Mathematics