\(\sqrt[3]{397}\)
Irrational Numbers
Estimate the value of cube roots to the tenths place
Estimate the value of each cube root to the tenths place.
Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2). For example, by truncating the decimal expansion of √2, show that √2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations.