53
write an expression
your expression:
expression that matches the problem below. evaluate once you have written
ces from the product of 8 and 4 double that, then add 6.
which list shows all the factors of 36 ?
a
1, 2, 3, 4 9 12 18 2

4.08%

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