Write the vertex form of the equation of the parabola shown in the given graph. Assume a = ±1.
A. y = -(x + 1)2 - 1
B. y = -(x - 1)2 + 1
C. y = -(x + 1)2 + 1
D. y = (x + 1)2 + 1
Answer: C
Mathematics
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Rewrite the number as a product of a whole number and a power of 10.7,000,000
A. 76 ? 10 B. 7 ? 105 C. 7 ? 107 D. 7 ? 106
Mathematics
Suppose a game has this payoff matrix. Find the expected value of the game for the specified strategies of A and B. 
A. -0.41 B. 1.29 C. -0.93 D. -0.87
Mathematics
Solve the proportion. Round the result to three significant digits when necessary.
A. x = 28.3 B. x = 29.5 C. x = 30.6 D. x = 27.0 E. x = 91.8
Mathematics
Simplify, if possible.
A. 
B. - 
C. 
D. 
Mathematics