A clothing store uses the step function f(x) to recommend jeans sizes as a function of x, a child's height in inches.
f(x) =
1. 40 sx < 42
2, 42 3, 44 sx < 46
4, 46 5 x < 48
According to the function, which is the height of a child who should wear size 2 jeans?

44.1 inches
44 inches
42 inches
41.9 inches

i dont know

step-by-step explanation:

answer: 10 meter

step-by-step explanation:

need details

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