Explain whether 11t - 3t is equivalent to 3t - 11t. please help

It is not.

There are two ways to deal with this.

First is to separate them into expressions.

11t - 3t is made up of 11t and -3t

3t - 11t is made up of 3t and -11t

As you can see the negative sign are different from each expressions, therefore they are different.

Another way to see it is to solve them.

11t - 3t = 8t

3t - 11t = -8t

The answers are not = so they are not equivalent to each other.

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.