A 30-60-90 triangle has a hypotenuse of 22.
What is the length of the short leg?

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

What is r i 4.5+10r=-6.5 with work pls