Without graphing, tell if the system is inconsistent, the equations are dependent, or neither. x + 4y = 212x - 5y = -10
A. Inconsistent
B. Neither
C. Dependent
Answer: B
Mathematics
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Use the square root property to solve the equation.3x2 + 21 = 0
A. {-i
, i
}
B. {-7i, 7i}
C. {-7, 7}
D. {-
, 
}
Mathematics
Plot the point in the xy-plane. Tell in which quadrant or on what axis the point lies.(0, 4) 
A. 
Quadrant II
B. 
y-axis
C. 
y-axis
D. 
x-axis
Mathematics
Find the mode of the set of numbers.-1, 2, -7, -6, -7, 0, -7
A. 2 B. -7 C. -7 and 2 D. -6
Mathematics
Solve the problem.A rock falls from a tower that is 117.6 m high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 2,800 s B. 10.8 s C. 4.9 s D. 10.6 s
Mathematics