3. Which equation best models the data in the table below? 30
Time (minutes)
Height (feet)
10
2120
20
1640
40
680
1160
O y= - 10x - 2120
O y=10x – 480
O y= - 48x + 2120
O y= - 48x + 2600

I think the answer is y=10x – 480

Step-by-step explanation:

17   x 256=4352

sorry if this is wrong, i'm new.

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