Use the quadratic formula to solve the quadratic equation.5x2 = 4x + 9
A. 
, 1
B. 
, 0
C. 
, -1
D. 
, -1
Answer: D
Mathematics
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Use mathematical induction to prove that the statement is true for every positive integer n.2n > 2n + 2, for n ? 4
What will be an ideal response?
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Use the power rule and the power of a product or quotient rule to simplify the expression.(-7x9y9z)3
A. -343x9y9z B. 343x12y12z C. -343x27y27z3 D. -21x28y28z4
Mathematics
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
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Mathematics