Use the distance formula to find the length of the line segment. Express your answer as a simplified radical. 
A. 3
B. 9
C. 3
D. 9
Answer: C
Mathematics
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If nylon is $15 per square yard, how much would the fabric cost to make a triangular sail with a base of 18 feet and a height of 30 feet?
A. $450 B. $2,025 C. $225 D. $8,100 E. $4,050
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Mathematics
Evaluate.Let a = 
, b = 
. Find a - b.
A. 
B. 
C. 
D. 
Mathematics
Two linear functions, y1 and y2, are graphed with their point of intersection indicated. Give the solution set of 
A. {-4} B. {10} C. {3} D. {-7}
Mathematics