X2 – 144 = 0 (what formula did you use besides calculator or quadratic formula ) show work on how you solved plz : d (put down 26 pts)

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

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

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.