A system of equations is shown below Equation A 5x +9=12

Equation B 4-3y +8

Which method eliminates one of the variables

A Multiply equation A by -1/3 and add the result to equation B

BMultiply equation A by 2 add equation B by - 6 and add the result together

C Multiply equation B by 3 and add the result to equation A

D Multiply equation B by 5 equation A by 4 and add the results together

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.

your answer is -9

step-by-step explanation:

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation:

3/8