Kevin and randy muise have a jar containing 53 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $10.25. how many of each type of coin do they have?

the jar contains quarters.
the jar contains nickels.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

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.