Graph the parabola and show the focus and directrix.y2 + 5x = 0
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Evaluate.2 ? 43
A. 24 B. 162 C. 512 D. 128
Mathematics
Evaluate the expression.-2 - 11
A. -9 B. 13 C. -13 D. 9
Mathematics
True or false? The ordered triple listed is a solution of the system.(-5, -2, -2) x + y + z = -9 x - y + 5z = -132x + y + z = -14
A. True B. False
Mathematics
Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.sin2 50° + cos2 50°
A. -1 B. 0 C. 1 D. 2
Mathematics