My dog was outside and on her period and i think she might have mated
what do i do

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

With number 11 ( show how you got the answer)

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis