Mason was hiking with his family. according to his fitness tracker, their highest altitude was greater than 440 feet. which of the following best describes their highest altitude? a. their highest altitude was less than 440 feet below sea level. b. their highest altitude was less than 440 feet above sea level. c. their highest altitude was more than 440 feet below sea level. d. their highest altitude was more than 440 feet above sea level.

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

your answer is -9

step-by-step explanation:

i dont understand

step-by-step explanation: