Simplify the expression. Assume that all variables are positive when they appear.
A. 9
- 11
B. 8
- 7
C. 10
+ 11
D. 9
- 7
Answer: B
Mathematics
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Answer the question.Find a, b, and c so that the graph of the equation y = ax2 + bx + c passes through the points 
and 
A. y = -5x2 - 3x + 5 B. y = -5x2 + 3x - 5 C. y = 5x2 - 3x - 5 D. y = -5x2 - 3x - 5
Mathematics
Draw the angle in standard position.
A. 
B. 
C. 
D. 
Mathematics
Determine the quadrant in which 
lies if sin?<0 and cos?>0.
?
A. fourth quadrant B. third quadrant C. first quadrant D. second quadrant E. second or third quadrants
Mathematics
Multiply. Express your answer in standard form.(12i)2
A. 144i2 B. -144 C. 144 D. -24
Mathematics