If f(x)=x/2-3 and g(x)=3x^2+x-6,(f+g)(x)
easy 10 points answer asap
multiple choice:
a.4x^2-9
b.3x^2-1/2x-3
c.3x^2+3/2x-3
d.3x^2+3/2x-9

50x5=$250

step-by-step explanation:

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