Evaluate the square roots first, then combine the results. Use a calculator or a square root table when needed. Round to the nearest thousandth.
+ 
A. 8.359
B. 23.000
C. 20.359
D. 5.916
Answer: A
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Fill in the blank with one of the words or phrases listed below. 
Use the facts below. 2 ? 3 = 6
4 + 17 = 21
20 - 9 = 11
The 35 above is called the 
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A. quotient
B. divisor
C. dividend
D. minuend
Find the expression that is equivalent to the given rational expression.- 
A. 
B. - 
C. 
D. 
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 11
- 4x
A. 15
B. 11
- 4x
C. 7x
D. 7x
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 = -12x
A. vertex: (0, 0)
focus: (0, -3)
directrix: y = 3
B. vertex: (0, 0)
focus: (0, -3)
directrix: y = 3
C. vertex: (0, 0)
focus: (3, 0)
directrix: x = -3
D. vertex: (0, 0)
focus: (-3, 0)
directrix: x = 3