Which of the following statements is never true?
a. a right triangle is equilateral
b. a right triangle is isosceles
c. an acute triangle is equilateral.
d. an acute triangle is isosceles.

At which value in the domain does f(x) =0?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Ten times the square of a non-zero number is eqaul to ninety times the number