Solve the equation.
x+1= 
x-1
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the equation by factoring.x2 + x - 42 = 0
A. {6, 7} B. {-7, -6} C. {-7, 6} D. {-6, 7}
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Translate the problem to a system of equations; then solve using the elimination method.The perimeter of a rectangular piece of wood is 58 inches. The length is 11 inches more than the width. Find the length and the width.
A. 21 in. by 10 in. B. 29 in. by 18 in. C. 11 in. by 9 in. D. 20 in. by 9 in.
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The graph of a polar equation is given. Select the polar equation for the graph. 
A. r = 2 B. r = 4 cos ? C. r sin ? = 2 D. r = 4 sin ?
Mathematics
Use the properties of logarithms to simplify the expression.
?
?
A. 17
B. 0
C. 
D. -17
E. 
Mathematics