Determine if the given ordered triple is a solution of the system.(-3, 1, 3) x + y + z = 1 x - y + 2z = -44x + y + z = 10
A. solution
B. not a solution
Answer: B
Mathematics
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Find the midpoint of the line segment joining the two points.
and 
A. 
B. 
C. 
D. 
Mathematics
Given the values of x and y, find an equation of variation in which y varies directly as x.y = 2.1, when x = 1.2
A. y = 
B. y = 2.1x
C. y = 1.75x
D. y = 
x
Mathematics
Solve the equation using the quadratic formula.2x2 + 12x = - 7
A. 
B. 
C. 
D. 
Mathematics
Solve.On a test, Steve got 75%, or 33, of the items correct. (There was partial credit on some items.) How many items were on the test?
A. 40 items B. 25 items C. 28 items D. 44 items
Mathematics