Simplify.
A. 5 
B. 6 
C. 10
D. 32
Answer: B
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Provide an appropriate response.Solve the equation
for x. If y is positive and b is negative, what, if anything, can you determine about the signs of the solutions? Explain your reasoning.
What will be an ideal response?
Multiply the rational expressions. Simplify, if necessary.
? 
A. 
B. 
C. 
D. 
Find the focus and directrix of the parabola with the given equation.- 
x2 = y
A. focus: (-4, 0) directrix: x = 2 B. focus: (0, -2) directrix: y = -2 C. focus: (0, -2) directrix: y = 2 D. focus: (0, 2) directrix: y = -2
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400