Solve the equation.5(x - 1) - 20 = 0
A. 5
B. 3
C. -3
D. -5
Answer: A
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Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.f(x) = x4 - 9x2 + 20
A. 5, -5, 4, -4 B. 2.2, 2 C. 2.2, -2.2, 2, -2 D. -1, 2.7, 2.7, -2.7
Solve the problem.The stock market gained 59 points on Tuesday and lost 41 points on Wednesday. It had closed on Monday at 2690 points. Where did the market close on Wednesday?
A. 2590 points B. 2708 points C. 2672 points D. 2790 points
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Classify the real number as a natural number, whole number, integer, rational number and/or irrational number. The number may belong to more than one set.
A. natural number, whole number, integer B. natural number, whole number, integer, rational number C. integer, rational number D. irrational number