Solve the inequality. Write the answer in set-builder notation.
+ 5 ? 9
A. {x
x ? 8}
B. {x
x < 10}
C. {x
x ? 8}
D. {x
x ? -2}
Answer: C
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Find the x- and y-intercepts. If no x-intercepts exist, state so. Round to two decimal places if necessary.y = 2x2 - 7
A. No x-intercept; y-intercept (0, -7) B. x-intercepts (1.87, 0) and (-1.87, 0); y-intercept (0, -7) C. x-intercepts (1.87, 0) and (-1.87, 0); y-intercept (0, 7) D. x-intercept (1.87, 0); y-intercept (0, -7)
Provide an appropriate response.Evaluate 36(42 - 6) - 18.92 following the order of operations using a calculator.
A. 53.08 B. -8.92 C. 341.08 D. -321.12
Multiply.6821(369)
A. 2,517,049 B. 2,515,949 C. 2,526,949 D. 2,516,949
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 = -8x
A. vertex: (0, 0)
focus: (2, 0)
directrix: x = -2
B. vertex: (0, 0)
focus: (0, -2)
directrix: y = 2
C. vertex: (0, 0)
focus: (-2, 0)
directrix: x = 2
D. vertex: (0, 0)
focus: (0, -2)
directrix: y = 2