A 400 m track is designed such that's it's limited by a rectangle with two semi-circles. Find the radius r of the semi-circle and the length l of the rectangle in order to maximize the area

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

ans789

step-by-step explanation: