Solve the system by the elimination method. 7x + 8y = 25 4x + 6y = 10
A. {(7, -2)}
B. {(6, -2)}
C. {(7, -3)}
D. ?
Answer: C
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Find the requested information using the law of cosines and/or the law of sines. Round to three decimal places.A triangle has sides a = 5 and b = 3 and angle C = 30°. Find the length of side c.
A. 2.832 B. 8.019 C. 4.584 D. 4.359
Use the graph to answer the question.
What were the total sales for the first 6 months of 2000?
A. $240,000 B. $290,000 C. $46,000 D. $366,000
Find parametric equations to represent the line segment from (-3,4)to(12,-8).
What will be an ideal response?
Use the properties of parallel lines to solve the problem.In the figure, 
. m(?BAE) = 36°. Given this information, find the measures of as many other angles as possible.
A. m(?CDE) = 36°, m(?ABD) = 144° B. m(?CDE) = m(?ABE) = m(?DCE )= 36° C. m(?CDE) = 36°, m(?ABE) = m(?DCE) = 54° D. m(?CDE) = 36°