Question part points submissions used a 20-ft-by-30-ft swimming pool is filled with water. the depth is measured at 5-ft intervals, starting at one corner of the pool, and the values are recorded in the table. estimate the volume of water using the midpoint rule with m = 2 and n = 3.

don't know sorry bru

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