Triangle acb is transformed using rotations, reflections, and translations into triangles a′c′b′ and a′′c′′b′′ . when angles a, b′, and c′′ are joined together, what is the angle sum?
the sum of m∠a , m∠b′ , m∠c′′ is 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

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap