Simplify.-11 + (5 ? 4 + 30) ÷ 5
A. 1
B. 15
C. -3
D. -1
Answer: D
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Solve the systems of equations by the addition method. 
A. 
B. 
C. {(6, 3)}
D. no solution; ?
Tell whether the statement is true or false.Let A = {6, 7, 8, 9, 10, 11}, B = {8, 10, 12}, C = {6, 7, 9, 11}, D = {6, 11}, and 
? ? D
A. True B. False
Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x3 + 2x2 - 9x - 18
A. -2; f(x) = (x + 2)(x2 + x - 9) B. -3, -2, 3; f(x) = (x + 3)(x + 2)(x - 3) C. -3; f(x) = (x + 3)(x2 - x - 6) D. -3, 2, 3; f(x) = (x + 3)(x - 2)(x - 3)
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e x + 8 = 3
A. {-6.75} B. {-5.60} C. {2.40} D. {-6.90}