Which of the following is an irrational number?

select one:
a. 16−−√ (i have no idea what that is. if you don't either, think of √16)
b. 13
c. −8
d. π (pi)

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?