Find the solution to the system of equations by the substitution method.-7x + 7y = 21-5x - 2y = -6
A. (-1, 4)
B. (0, 4)
C. (-1, 3)
D. (0, 3)
Answer: D
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A rock is tossed upward from the top of a building and allowed to fall to the ground. Its height, in feet, above the ground after t seconds is given by
?
.
?
Use functional notation to express the height of the rock after 0.44 seconds. Then calculate that value.
?
A. Functional notation 
. Value is 74.50 feet.
B. Functional notation 
. Value is 
feet.
C. Functional notation 
. Value is 60.70 feet.
D. None of the above.
In how many ways can 8 plates be placed on a table?
A. 8 B. 64 C. 40,320 D. 256
Solve.9x = -18
A. 27 B. -27 C. 1 D. -2
Write the slope-intercept form of the equation for the line passing through the given pair of points.(-5, 2) and (-5, 8)
A. 8x + 2y = 0 B. 2x + 8y = 0 C. y = 2 D. x = -5