Mr. Mauk surveyed 50 high school students in his driver-education course to determine how many times most motorists have taken a driver-education course. Which of the following best explains why the results of Mr. Mauk's survey may NOT be valid? F He did not include motorists from other driver-education courses.
G He should have included adults who have taken driver-education courses.
H He should have included taxi drivers in his survey.
J The sample used in his survey may not have been representative of most motorists.​

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

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll

answer: group b.

step-by-step explanation:

hi do you need an answer for your question?

step-by-step explanation: