An isosceles triangle has sides of length 12.4, 12.4, and 17. Find the measure of the vertex angle.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Ethan is proving that the slope between any two points on a straight line is the same. he has already proved that triangles 1 and 2 are similar. drag statements and reasons to complete the proof.

Astore is having a sale in which all items are reduced by 20 percent. including tax, jennifer paid $21 for a pair of shorts. if the sales tax is 5 percent, what was the original price of the shorts