Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.
A. (1, -9)
B. (-1, -9)
C. (-1, 9)
D. (1, 18)
Answer: A
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Find the center of mass of a lamina in the shape of an isosceles right triangle with equal sides of length a = 15 if the density at any point is proportional to the square of the distance from the vertex opposite the hypotenuse. Assume the vertex opposite the hypotenuse is located at (0, 0), and the sides are along the positive axes.
What will be an ideal response?
Solve the problem.A square playground has a white line drawn through its diagonal. This creates two triangles whose angle measures are 45°, 45°, and 90°. If the sides of the playground are 73 feet, use trigonometric functions to find the length, x, of the diagonal. 
A. 51.6 ft B. 126.4 ft C. 103.2 ft D. 42.1 ft
Solve the equation.6 + y = 15
A. 90 B. 7 C. 9 D. 21
Write the improper fraction as a mixed number.
A. 15
B. 
C. 14
D. 13