Write the expression as the sine, cosine, or tangent of an angle.cos 
cos x - sin sin x
A. sin
B. cos
C. cos
D. sin
Answer: C
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Solve the problem.The range R of a projectile is related to the initial velocity v and projection angle ? by the equation 
where g is a constant. How is 
related to 
if v is constant?
A. 
= - 
B. 
= 
C. 
= 
D. 
= 
Solve the problem.List three denominator values that could be used to write an equivalent fraction for 
.
What will be an ideal response?
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(7x + 9)2 = 64
A. 
B. 
C. 
D. 
The post office recorded the weights of packages sent on a particular day and used the results to construct a histogram. Use the histogram to solve the problem. 
0-910-1920-2930-39Weight of Package (pounds)Find the number of packages 10 pounds and over.
A. 11 packages B. 6 packages C. 5 packages D. 7 packages