Dondre says that he can take any right triangle and make a new right triangle just by doubling the side lengths. is dondre's conjecture true? test his conjecture using three different right triangles

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

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

Which statement justifies why angle ebc measures 90?