Which of the following is a good way to quickly determine whether 3/12 and 1/4 are equal

For this case we must indicate a form to determine if the following expressions are equal:

It is observed that if we multiply the numerator and denominator of the second fraction by "3" we obtain the first fraction:

Similarly, if we divide the numerator and denominator of the first fraction between "3" we obtain the second fraction.

ANswer:

Divide the numerator and denominator of the first fraction between "3"  or

Multiply the numerator and denominator of the second fraction by "3"

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb