1)why does the first method ( lxwxh=v) for determining volume work only for a regularly shaped object?
2) will the water displacement method for determining volume work for any object or just an irregularly shaped one? why?
3) is one method of measurement more accurate than the other? why or why not?
4) would the displacement method of measurement work for a cube of sugar? what about a cork? why or why not?
5)what did you find out from this investigation? be thoughtful in your answer

f

step-by-step explanation:

f

f(x) = y

f(-3) = -5

step-by-step explanation:

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.

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.