Find the missing factor.x2 + 2x - 8 = (x - 2)( )
A. x - 4
B. x2 + 2
C. 2 - x
D. x + 4
Answer: D
Mathematics
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Solve the problem.Each gallon of shingle stain covers 120 square feet. How many gallons are needed to cover 840 square feet?
A. 8 gallons B. 5 gallons C. 7 gallons D. 6 gallons
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Use the unit circle to find the value of the trigonometric function.csc 
A. 0 B. 1 C. -1 D. undefined
Mathematics
Complete the table for the equation.2x + y = -12
A. 
B. 
C. 
D. 
Mathematics
Solve by the substitution method.x + y = -9x + y = 3
A. {(-9, 3)} B. {(0, -6)} C. ? D. {(x, y)|x + y = 3}
Mathematics