Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 1?
A. 
, 
B. 0, 2?
C. 
D. none
Answer: B
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Find the period of the function. y = 5 cos 
x
A. 
B. 
C. 4?
D. 5
Determine whether the expression is a polynomial. If it is a polynomial, give its degree.-4y6 - 
A. polynomial; degree 6 B. polynomial; degree 3 C. polynomial; degree -4 D. not a polynomial
Provide an appropriate response.Paul notes that if a = 3 and b = -3, then 
= 
= -1. He concludes that for any real numbers a and b, 
= 
. Do you agree with his reasoning? If not, why not?
What will be an ideal response?
Evaluate the expression.The height (in feet) of a golf ball hit with an initial speed of 114 feet per second after 3 seconds is given by 
Evaluate this expression in order to determine the height of the golf ball after 3 seconds.
A. 27 feet B. 13.5 feet C. 123 feet D. 315 feet