Solve the compound inequality. Graph the solution set.4x + 1 < 5x + 5 < 6x - 3
A. (-4, 8)
B. (-4, 8)
C. (8, ?)
D. (-4, ?)
Answer: C
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Solve the polynomial inequality. Express the solution using interval notation.x3 + 4x2 > x + 4
A. (-1, 1) ? (4, ?) B. (-?, - 1) ? (1, 4) C. (- 4, -1) ? (1, ?) D. (-?, - 4) ? (-1, 1)
Solve for x.32x + 1 = 27
A. {1} B. {3} C. {-1} D. {9}
Graph the pair of polar equations on a calculator, together on the same screen, and use the trace feature to estimate the polar coordinates of all points of intersection of the curves. Round to the nearest hundredth, if necessary.r = 7, r = 4 + 3 sin ?
A. (1.57, 7) B. (7, 1.57), (7, 4.712) C. (7, 3.14) D. (7, 1.57)
Decide whether the relation is a function, and give the domain and range.
A. Not a function; domain: (-?, -3]; range: (-?, ?) B. Not a function; domain: (-?, ?); range: (-?, -3] C. Function; domain: (-?, -3]; range: (-?, ?) D. Function; domain: (-?, ?); range: (-?, -3]