Without graphing the function, determine its amplitude or period as requested.y = -3 cos 
xFind the period.
A. 8?
B. -3
C. 
D. 
Answer: A
Mathematics
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Solve.It takes 9 hours for 6 people to paint a house. How long will it take 2 people to do the job?
A. 29.7 hr B. 3 hr C. 2.9 hr D. 27 hr
Mathematics
Parametric equations and a value for the parameter t are given. Find the coordinates of the point on the plane curve described by the parametric equations corresponding to the given value of t.x = 2 + 3 cos t, y = 4 + 2 sin t; t = 
A. (5, 4)
B. 
C. (2, 5)
D. (2, 6)
Mathematics
Evaluate using any method.
? ln (x ? 5)(x + 3)dx
Mathematics
Write the rate as a fraction in simplest form.434 miles in 49 hours
A. 
B. 
C. 
D. 
Mathematics