Subtract.
A. 99
B. 23
C. 21
D. 83
Answer: B
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Use elimination by substitution to find the solution for the following system.
A. x = -1, y = 6 and x = 7, y = 13 B. x = -1, y = 6 and x = 7, y = 14 C. x = -1, y = 6 D. x = -1, y = 4 and x = 7, y = 14
Solve the problem.A deep-sea diver dives from the surface to 127 feet below the surface. She then dives down 20 more feet. Find the diver's depth.
A. 105 feet below the surface B. 150 feet below the surface C. 147 feet below the surface D. 107 feet below the surface
Determine whether the given expression is a polynomial. If it is, write it in standard form.x2 + x4 - x3 - 2
A. Yes; x4 - x3 + x2 - 2 B. No
Factor the expression.x(2x + 4)2(x2 - 7)-1/2 + 5(x2 - 7)1/2(2x + 4)
A. (2x + 4)(x2 - 7)1/2(7x2 + 4x - 35) B. (2x + 4)2(x2 - 7)-1/2(5x2 + x - 35) C. (2x + 4)(x2 - 7)-1/2(7x2 + 4x - 35) D. (2x + 4)(x2 - 7)-1/2(5x2 + 2x - 31)