Solve the system of equations by substitution.
A. x = 0, y = 4; (0, 4)
B. x = 0, y = -4; (0, -4)
C. x = 4, y = 0; (4, 0)
D. x = -4, y = 0; (-4, 0)
Answer: D
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Which of the following is not true about similar triangles??
A.
?Similar triangles do not necessarily have the same size.
B.
?Similar triangles have the same shape.
C.
?All angles in one triangle are not necessarily the same as in the similar triangle.
D.
?All angles in both triangles are congruent.
E.
?If a, b, and c are sides of one triangle, and a', b', c' are corresponding sides of the other triangle, then 
Multiply.(2x + 11y)2
A. 4x2 + 44xy + 121y2 B. 2x2 + 121y2 C. 2x2 + 44xy + 121y2 D. 4x2 + 121y2
Divide to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.4
÷ 
A. 20
B. 18
C. 21
D. 19
Write the decimal as a fraction or mixed number in lowest terms.0.64
A. 
B. 
C. 
D. 