Find an equation of variation for the given situation.y varies directly as x, and y = 0.7 when x = 0.4.
A. y = 1.1x
B. y = 
x
C. y = 
x
D. y = 0.3x
Answer: B
Mathematics
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Find a and b.If |x + 1| ? 2, then a ? 
? b.
A. a = 
, b = 
B. a = 
, b = 
C. a = 
, b = 
D. a = 
, b = 
Mathematics
Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -5x2 - 15x
A. minimum; - 
B. minimum; 
C. maximum; 
D. maximum; - 
Mathematics
Suppose that a game has payoff matrix 
. Determine the optimal pure strategies for R and C.
A. R - row 2, C - column 2 B. R - row 1, C - column 1 C. R - row 1, C - column 2 D. R- row 2, C - column 1 E. none, because the game is not strictly determined
Mathematics
Find the quotient.
A. 
B. 
C. 2
D. 
Mathematics