Simplify.-8 + (-7) + (-6) + (-7) + 7 + (-15)
A. -20
B. -50
C. -8
D. -36
Answer: D
Mathematics
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Solve using Gauss-Jordan elimination. 6x + 4y = 0 4x + 2y = -2
A. (3, -2) B. (-2, -3) C. (-2, 3) D. No solution
Mathematics
Solve the problem.A washer is made by removing a circular disk from the center of another circular disk of radius 11 ft. If the disk that is removed has radius x, write a completely factored polynomial whose values give the area of the washer.
A. ?(11 - x)(11 + x) B. ?(11 - x)2 C. ?(22 - x)2 D. ?(22 - x)(22 + x)
Mathematics
Find the sum Sn of the first n terms of the geometric sequence. 
, 
, 
, . . . ; n = 5
A. - 
B. 
C. 
D. 93
Mathematics
Sketch the graph of the linear equation. Label the coordinates of the y-intercept and the x-intercept.y = -2x + 3
What will be an ideal response?
Mathematics