Use the graph to determine the function's domain and range. Write the domain and range in interval notation.
A. domain: x = 1
range: y = -5
B. domain: (-?, ?)
range: (-?, ?)
C. domain: (-?, ?)
range: y = -5
D. domain: x = 1
range: (-?, ?)
Answer: B
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Graph the pair of parametric equations in the rectangular coordinate system.x = 4 + 6 sin t, y = 4 + 6 cos t; 0 ? t ? 2? 
A. 
B. 
C. 
D. 
Solve the system.3w - 5y + z = 19-w + x + 2y - z = -42w - x + 2z = -8 x + 3y - z = -11
A. ( 0, -2 , 4, 5) B. (-2, 4, -5, 0) C. (2, 6, -5, -1) D. (-4, 0, -6 , 1)
Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 3 feet long at each end, the center support is 253 feet long, and the supports increase in length by 2 feet with each support (from 3 feet to 253 feet), what is the total length of all the supports?
A. 32,003 feet B. 32,005 feet C. 32,001 feet D. 32,000 feet
Solve. Write the fraction in simplest form.Find the area of the rectangle. Write the answer in simplest form. Recall that the area = length ? width.
A = 
mileB = 11 miles
A. 
sq mi
B. 
sq mi
C. 
sq mi
D. 5 sq mi