Solve the system of equations.x2 + y2 = 34x2 - y2 = 16
A. (5, 3), (-5, 3), (5, -3), (-5, -3)
B. (5, -3), (5, 3)
C. (5, 3), (3, 5), (-5, -3), (-3, -5)
D. (-5, -3), (-3, -5)
Answer: A
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Solve the formula i = prt for the variable r. Then substitute numbers i = 48 , p = 200, and t = 4 to find the variable's value.
A. r = 148 B. r = - 156 C. r = 0.06 D. r = 252 E. r = 0.24
Give the appropriate form of the partial fraction decomposition.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Solve the system using elimination.2.1x + 0.3y = -10.80.7x + 0.6y = -4.1
A. (-5.3, -1) B. (-2.9, -0.7) C. (-5, -1) D. (-7.1, -0.7)
Graph the region that satisfies the constraints.A contractor builds two models of homes, the Raskolnikov and the Karamazov. The Raskolnikov requires 180 worker-days of labor and $300,000 in capital, while the Karamazov requires 270 worker-days of labor and $200,000 in capital. The contractor has a total of 5400 worker-days and $6,000,000 in capital available per month. Let x represent the number of Raskolnikov models and y represent the number of Karmazov models.
A. 
B. 
C. 
D. 