A researcher estimates that a fossil is 3200 years old. Using carbon-14 dating, a procedure used to determine the age of
an object, the researcher discovers that the fossil is 3600 years old.
a. Find the percent error.
b. What other estimate gives the same percent error?
Explain your reasoning.

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers