Solve the quadratic equation by any method.x2 + 2x - 48 = 0
A. 8, 6
B. -8, 6
C. -6 ± i
D. -8 ± 6
Answer: B
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Name the curve with the given polar equation. If it is a conic, give its eccentricity.r = 
A. Ellipse; e = 
B. Parabola; e = 1
C. Hyperbola; e = 3
D. Vertical line
Verify the identity.sin 4x = 2 sin 2x cos 2x
What will be an ideal response?
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x = 8 or x = 4} range: all real numbers intercept: (4, 0) symmetry: x-axis B. function domain: all real numbers range: {y|y = 8 or y = 4} intercept: (0, 4) symmetry: none C. function domain: all real numbers range: all real numbers intercept: (0, 4) symmetry: none D. not a function
Find the trigonometric function value of the corresponding complementary angle.Given that cos 2° ? 0.9994, find sin 88°.
A. 1.0006 B. 28.6363 C. 0.0349 D. 0.9994