Solve the equation by completing the square.x2 + 4x = 9

A. {-2 - 2, -2 + 2}
B. { 2 + }
C. {-2 - , -2 + }
D. {-1 - , -1 + }


Answer: C

Mathematics

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Determine the principal value without using a calculator.- 4

A. -5 B. Not real number C. 25 D. 8.368

Mathematics

Solve the equation.2-3x + 9  = 8

A. {-4} B. {-2} C. {4} D. {2}

Mathematics

Analyze the graph of the given function f as follows:(a) Determine the end behavior: find the power function that the graph of f resembles for large values of |x|.(b)  Find the x- and y-intercepts of the graph.(c)  Determine whether the graph crosses or touches the x-axis at each x-intercept.(d)  Graph f using a graphing utility.(e)  Use the graph to determine the local maxima and local minima, if any exist. Round turning points to two decimal places.(f) Use the information obtained in (a) - (e) to draw a complete graph of f by hand. Label all intercepts and turning points.(g)  Find the domain of f. Use the graph to find the range of f.(h)  Use the graph to determine where f is increasing and where f is decreasing.f(x) = 8x5 + 36x4 + 36x3

What will be an ideal response?

Mathematics

Test the equation for symmetry with respect to the given axis, line, or pole.r = 3 - 6 sin ?; the polar axis

A. Symmetric with respect to the polar axis B. May or may not be symmetric with respect to the polar axis

Mathematics