Put the following into vertex form: y=-2x^2+4x+6

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%

Ineed with this problem 21 show steps

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is