Graph the parabola.y = x2 + 2x - 1
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Two angles are supplementary, and one is 40° more than three times the other. Find the smaller angle.
A. 145° B. 35° C. 75° D. 105°
Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 0?
A. 
, 
B. 0, ?, 2?
C. 0, 1, 2
D. 0, 1
Solve the problem.A company makes 3 types of cable. Cable A requires 3 black wires, 3 white wires, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red. Cable C requires 2 black, 1 white, and 2 red. If 100 black wires, 110 white wires, and 90 red wires were used, then how many of each cable were made?
A. 10 cable A, 30 cable B, 93 cable C B. 20 cable A, 30 cable B, 10 cable C C. 10 cable A, 103 cable B, 20 cable C D. 10 cable A, 30 cable B, 20 cable C
Use the rotated system to graph the equation.x2 - 8xy + y2 + 25 = 0
A. 
B. 
C. 
D. 