Find the sum.[7 + (-1)] + [7 + (-20)]
A. -7
B. -21
C. 35
D. 19
Answer: A
Mathematics
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Provide an appropriate response.The two triangles shown below are congruent. The vertices corresponding to A, B, and C (in order) are 
.
A. Y, X, and Z B. X, Y, and Z C. Y, Z, and X D. Z, X, and Y
Mathematics
Use dimensional analysis to answer the question. Which person is heavier? Someone who weighs 41 kilograms or someone who weighs 104.1 pounds?
A. They are the same weight. B. The person who weighs 104.1 pounds is heavier. C. The person who weighs 41 kilograms is heavier.
Mathematics
Match the graph to one of the listed functions. 
A. f(x) = -x2 + 4x B. f(x) = -x2 + 4 C. f(x) = x2 + 4x D. f(x) = x2 + 4
Mathematics
Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Mathematics