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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Solve the equation.x4 - 29x2 + 100 = 0
A. {4, 25} B. {-2i, 2i, -5i, 5i} C. {2, 5} D. {-2, 2, -5, 5}
Divide. Write the answer in simplest form.
÷ 
A. 
B. 27
C. 
D. 
Solve the problem.A projectile is fired from the top of a building 200 feet high. The graph shows the height of the projectile, in feet, above the ground, in terms of its distance, in feet, from the base of the building. 
What is the maximum height of the projectile? What is the distance of the projectile from the base of the building when it reaches its maximum height?
A. 396 feet; 1635 feet B. 396 feet; 676 feet C. 676 feet; 396 feet D. 1635 feet; 676 feet
Factor by any method.x3 - 216
A. (x - 6)(x2 + 36) B. (x + 6)(x2 - 6x + 36) C. (x - 6)(x2 + 6x + 36) D. (x + 216)(x2 - 1)