The circumference of an ellipse is approximated by C = 27/a? #6 where 2a and 2b are the lengths of
the axes of the ellipse. Which equation is the result of solving the formula of the circumference for b?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units