Sara is completing the square to find the maximum or minimum value of the function f(x) = (2 - x) (5 + x). What is the first ste
p that Sara must take? Does the function have a maximum or minimum value? What is that value? A) multiply the binomials; maximum value;
49
4
B) multiply the binomials; minimum value;
49
4
C) set each factor equal to zero and solve for x; minimum value;
−2
5
D) set each factor equal to zero and solve for x; maximum value;
−7
2
f(x) = 10 + 2x - 5x - x^2, or f(x) = -x^2 - 3x + 10 Find the derivative: f '(x) = -2x - 3 Set the deriv. = to 0 and solve for x: -2x = 3, and x = -3/2 This x = -3/2 is the x-coordinate of the max value. The y-coord. is
f(-3/2) = (-3/2)^2 - 3(-3/2) + 10 = 21.25
I realize that this result does not agree with any of the four possible answers. Please ensure that y ou have copied down this problem completely and correctly.
Every triangle equals a total of 180 degrees. If you add 114 and 33 you get 147 degrees. You subtract 147 from 180 to get your answer for X, Which is 33 degrees.
