Solve by the method of your choice. Identify whether the system has no solution or infinitely many solutions, using set notation to express the solution set.5x + y = 1949 - 9 = 8y
A. {(8, 14)}
B. {(x, y) 
}
C. ?
D. {2.8, 5}
Answer: D
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Provide an appropriate response.In oblique triangle ABC, find the indicated part. Round to the nearest tenth. a = 3, b = 4, and angle C = 40°; find side c.
Fill in the blank(s) with the appropriate word(s).
Use Cramer's Rule, if possible, to solve the system of linear equations. 
A. 
B. 
C. 
D. 
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: all real numbers range: {y|-1 ? y ? 1} intercepts: (-?, 0), (0, 0), (?, 0) symmetry: origin B. function domain: {x|-? ? x ? ?} range: {y|-1 ? y ? 1} intercepts: (-?, 0), (0, 0), (?, 0) symmetry: origin C. function domain: {x|-1 ? x ? 1} range: {y|-? ? y ? ?} intercepts: (-?, 0), (0, 0), (?, 0) symmetry: none D. not a function
Determine whether the pair of rational expressions is equivalent.
and 
A. Not Equivalent B. Equivalent