Solve the problem.Tracy can wallpaper 5 rooms in a new house in 15 hours. Together with her trainee they can wallpaper the 5 rooms in 11 hours. How long would it take the trainee working by herself to do the job?
A. 70 hr
B. 50 hr
C. 15 hr
D. 35 hr
Answer: D
Mathematics
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Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = 
sin 
, s(?2) = 2
A. s = -2 cos 
+ 8
B. s = 2 cos 
+ 4
C. s = -2 cos 
+ 3
D. s = -2 cos 
+ 4
Mathematics
Solve the equation for exact solutions.4 cos-1 x = ?
A. 
B. 
C. 
D. 
Mathematics
Graph the basic function using a solid line and the transformed function using a dotted line.f(x) = - 
(x + 4)2 + 3
A. 
B. 
C. 
D. 
Mathematics
Identify the operation to perform to the equation to isolate the variable.118.5n = 3.95
A. Multiply by 118.5 B. Divide by 3.95 C. Divide by 118.5 D. Multiply by 3.95
Mathematics