What is the value of x in the isosceles trapezoid below?

C.

Step-by-step explanation:

We have been given an image of an isosceles trapezoid. We are asked to find the value of x.

Since we know that opposite angles of an isosceles trapezoid are supplementary. So we can set an equation as:

Upon substituting our given values in above equation we will get,

Upon dividing both sides of our equation by 17 we will get,

Therefore, the value of x is 10 and option C is the correct choice.

60.96438

step-by-step explanation:

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this