An unknown radioactive element decays into non-radioactive substances. In 900 days the radioactivity o sample decreases by 49 percent . (a) What is the half-life of the element? half - : ( days) Round to two decimal places . How long will it take for a sample of 100 mg to decay to 51 mg

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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?

M the table below represents a linear function f(x) and the equation represents a function g(x): x f(x)−1 −50 −11 3g(x)g(x) = 2x − 7part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points)part b: which function has a greater y-intercept? justify your answer. (4 points)