Solve the problem.A solar reflector is made using 26 identical triangular-shaped mirrors, each having sides 
. What is the total surface area of the reflector?
A. 35 sq m
B. 28 sq m
C. 27 sq m
D. 30 sq m
Answer: D
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Multiply.2629(446)
A. 1,172,634 B. 1,182,534 C. 1,172,534 D. 1,171,534
Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 - y2 = 9-2x - y = 6
What will be an ideal response?
Simplify the expression. Assume that variables represent nonzero numbers.
2
A. 
B. 
C. 
D. 
Write a system of linear equations that models the situation. Do not solve.An isosceles triangle has a perimeter of 29 inches. The shortest side is 7 inches shorter than either of the other two sides. Find the length of each side of the triangle (recall that an isosceles triangle has two sides with equal measure).
A. 2x + y = 29 x - y = 7 B. 2x + 2y = 29 x - y = 7 C. x + y = 29 x + y = 7 D. x + 2y = 29 x - y = 7