Do all real numbers have a decimal expansion? Select each correct answer
Some numbers, such as have a decimal expansion that terminates
Some numbers, such as do not have a decimal expansion.
All real numbers have a decimal expansion
. Some numbers, such as V11 have a decimal expansion that neither terminates nor repeats.
Only some real numbers have a decimal expansion

1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.