Simplify.6 ? [32 + 8 ? (4 + 5)]
A. 276
B. 918
C. 486
D. 90
Answer: C
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Graph the parabola whose equation is given.y = x2 + 8x + 7
A. 
B. 
C. 
D. 
Solve the problem.y varies jointly as x and z. y = 7.5 when x = 75 and z = 10. Find y when x = 55 and z = 10.
A. 55 B. 550 C. 11 D. 5.5
Approximate the value using a calculator. Express answer rounded to three decimal places.3.3?
A. 42.556 B. 10.367 C. 36.462 D. 43.711
Solve the quadratic equation.
Use the following property:For any real number 
, 
if and only if
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.
A. x = 0 or x = -7
B. x = 0
C. x = 4 or x = -8
D. x = 11 or x = -1
E. x = 9 or x = -11