Mr. Iba, a Medicare patient with a Medigap insurance policy, is seen for an office visit and the fee is $80. The Medicare-approved amount is $54.44. The patient has met his deductible for the year. Physician’s actual fee $

What is the absolute value of the complex number -4-sqrt2i

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.