Verify the identity.cos 
= -sin x
What will be an ideal response?
cos
= cos(x)cos
- sin(x)sin
.
Since cos
= 0 and sin
= 1, then
cos
= cos(x)(0) - sin(x)(1) = - sin x.
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Add or subtract. Write the answer in lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Solve.The net income y (in millions of dollars) of Pet Products Unlimited from 1997 to 1999 is given by the equation 
where x represents the number of years after 1997. Assume this trend continues and predict the year in which Pet Products Unlimited's net income will be $466 million.
A. 2005 B. 2002 C. 2004 D. 2003
Write the statement in the form "if p, then q."All numbers which are divisible by four are even numbers.
A. If a number is divisible by four, then it is even. B. If a number is even, then it is not divisible by four. C. If a number is even, then it is divisible by four. D. If a number is not divisible by four, then it is not even.
Choose the equation that matches the rational function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 