X²-2x+1 is -3 < x <3
what
value of range?
greatest

answer:

sometimes

*i think

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

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

13.46

step-by-step explanation:

16.80 x .20 = 13.46