What is the correct answer for all?

21. B

22. D

23. B

24. A

Step-by-step explanation:

Either just factor out the common factor from the first equation, or distribute the number from the outside to the numbers in the parentheses to check for the right answer.

I hope this helps!

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.

95.03 is the answer. hope this !