WILL GIVE BRAINLIEST . Molality, m, tells us the number of moles of solute disolved in exactly 1 kilogram (kg) of solvent. Molality is represented by the equation m = s/k, where s represents the moles of solute and k represents the mass of the solvent in kilograms. A solution is know to have a molality of 0.2 and contains 13 kg of solvent. What is the number of moles of solute contained in the solution?

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.

i need a picture

step-by-step explanation:

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60