Which graph represents y = RootIndex 3 StartRoot x EndRoot? On a coordinate plane, a parabola with a vertex at (0, 0) opens up. On a coordinate plane, a curve that begins at (0, 0) opens down and to the right in quadrant 1. On a coordinate plane, a cubic function is vertical and goes through (0, 0). On a coordinate plane, a cubic function is horizontal and goes through (0, 0).

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value