Solve the problem.Working together, Rick and Juanita can complete a job in 6 hours. It would take Rick 9 hours longer than Juanita to do the job alone. How long would it take Juanita alone?
A. 15 hr
B. 9 hr
C. 3 hr
D. 6 hr
Answer: B
Mathematics
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Solve the problem.A moving firm charges a flat fee of $45 plus $40 per hour. Let y be the cost in dollars of using the moving firm for x hours. Find the slope-intercept form of the equation.
A. y = 40x - 45 B. y = 45x - 40 C. y = 40x + 45 D. y = 45x + 40
Mathematics
Provide an appropriate response.Explain why log2 13 is between 3 and 4.
What will be an ideal response?
Mathematics
Using a sum or difference identity, write the following as an expression involving functions of x.sin (x + 45°)
A. sin x
B. -cos x
C. 
cos x - 
sin x
D. 
cos x + 
sin x
Mathematics
Perform the matrix operation.Given A = 
and I = 
, find AI.
A. 
B. 
C. 
D. 
Mathematics