Use 
and 
to represent the range of 
by using interval notation.
A. 
B. 
C. 
D. 
E. None of these
Answer: E
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Translate to an algebraic expression.Robbie drove his car at 50 mph for x hours. How many miles did he travel?
A. 50x
B. 
C. 50 - x
D. 
The function graphed is of the form y = a sin bx or y = a cos bx, where b > 0. Determine the equation of the graph.
A. y = 4 cos (3x)
B. y = 4 cos 
C. y = 4 sin (3x)
D. y = 3 sin 
Find the missing parts of the triangle. A = 44.29°a = 51.82 ydb = 63.64 ydIf necessary, round angles and side lengths to the nearest hundredth.
A. no such triangle B. B1 = 59.04°, C1 = 76.67°, c1 = 72.21 yd B2 = 120.96°, C2 = 14.75°, c2 = 18.89 yd C. B = 59.04°, C = 76.67°, c = 72.21 yd D. B1 = 76.67°, C1 = 59.04°, c1 = 72.21 yd B2 = 14.75°, C2 = 120.96°, c2 = 18.89 yd
Solve the problem.Martha can rake the leaves in her yard in 2 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together?
A. 
hr
B. 7 hr
C. 
hr
D. 
hr