Awooden artifact contains 64% of the carbon -14 that is present in living trees. if the half life of carbon-14 is 5730 years, how many years old is the artifact?

Find the slope of the line passing through a pair of points

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit

If y varies as x, and y=8 as x=4 what will be the value of y if x=2