Two sides of a triangle have the same length. the third side measures 6 m less than twice the common length. the perimeter of the triangle is 22 m. what are the lengths of the three sides?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Evaluate the expression. (9 + 5)(3 + 2)0