Answer the question.x2 + y2 = 36x2 - y2 = 9Explain the steps you would use to solve this system by the elimination method.
What will be an ideal response?
Answers may vary. One possibility: Add the two equations together to eliminate y2.
Solve the resulting equation for x 
.
Substitute the solutions for x into either of the original equations 
. Solve for y 
.
Check solutions in the other original equation 
.
Thus, the solution set is:
.
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Convert the common fraction into decimal form. If necessary, round to the nearest thousandth.
A. 1 B. 0.857 C. 0.862 D. 0.854
Simplify. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Complete the identity.(sin x - cos x)2 = ?
A. 1 + cos 2x B. sin 2x C. 1 - sin 2x D. 1 - cos 2x
Solve the problem.Tote boards at race tracks list the odds that a horse will lose the race. If the probability of a horse winning the race is 
, then what are the odds listed on the tote board?
A. 11 to 1 B. 9 to 1 C. 10 to 1 D. 1 to 10