Use a special product formula to simplify.
2
A. c2 + 
B. c2 + 
C. c2 + 
c + 
D. 2c + 
c + 
Answer: C
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Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.57 ? 5-5
A. 25
B. -535
C. -175
D. 
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. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Graph the solution of the system of linear inequalities.
A. 
B. 
C. 
D. 
Solve the problem.Find the expected number of girls in a family of 7 children.
A. 4 B. 4.25 C. 3.5 D. 4.5