Graph the system of inequalities, and find the coordinates of the vertices.y ? 4 - 2xx ? 1
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Add.6125 + 2288
A. 8413 B. 324 C. 223 D. 303
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 9x2y
B. 63xy
C. 3x2y
D. 3x4y2
Mathematics
Find the exact value of the trigonometric expression without the use of a calculator.cos 
sin 
- cos 
sin 
A. 
B. 1
C. 
D. 
Mathematics
Pivot once about the circled element in the simplex tableau, and read the solution from the result. 
A. x3 = 15, s2 = 16, s3 = -27, z = 15; x1, x2, s1 = 0 B. x3 = 5, s2 = 16, s3 = -27, z = 15; x1, x2, s1 = 0 C. x3 = 5, s2 = 1, s3 = -27, z = 15; x1, x2, s1 = 0 D. x3 = 5, s2 = 1, s3 = 63, z = 15; x1, x2, s1 = 0
Mathematics