A triangle with sides 11 m , 13 m and 18 m is a right triangle. True or false

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n