Solve the problem.A skier is heading downhill at a speed of 13 mph. The slope of the hill makes an angle of 37.2° with the horizon. To the nearest tenth, what are the components of her velocity?
A. -36.2 mph, -8.4 mph
B. 36.2 mph, 8.4 mph
C. -10.4 mph, -7.9 mph
D. 10.4 mph, 7.9 mph
Answer: D
Mathematics
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Convert as indicated.411 mi to kilometers
A. 388.8 km B. 435.7 km C. 657.6 km D. 255.2 km
Mathematics
Determine a general formula (or formulas) for the solution to the equation.2 sin ? + 
= 0
A. ? = 
+ 2n? or ? = 
+ 2n?
B. ? = 
+ 2n? or ? = 
+ 2n?
C. ? = 
+ n? or ? = 
+ n?
D. ? = 
+ n? or ? = 
+ n?
Mathematics
Collect like terms.
x3 - x + 9 + 
x3 + 4x - 2
A. 
x3 + 5x+ 7
B. 
x3 + 3x + 11
C. 
x3 + 3x + 7
D. 
x3 + 3x + 7
Mathematics
Find the sum of the sequence.
A. 18 B. 20 C. 30 D. 14
Mathematics