The lengths of the sides of a triangle are 7, 8, and 11. classify the triangle as acute, right, or obtuse.

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)