Select the correct answer.

What are the zeros of this quadratic function?

Ax) = (x-7) (x+8)

A.

x = - 7 and x = 8

B.

x = 7 and x = - 8

C.

x = 0 and x = 7

OD

x = 0 and x = - 8

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Dos motos, A y B, toman la salida en una carrera de 90 km. La moto A realiza el recorrido con una velocidad media inferior en 20 km/h a la de la moto B, con lo que llega a la meta 3 minutos después que B. Calcula la velocidad de cada moto.

100 10, UUS 11. A ball is thrown upward at a velocity of 15 meters per second from a height that is 20 meters above the ground. The height h (in meters) of the ball at time t in seconds) after it is thrown can be found by h (t) = - 5t^2 + 15t + 20.

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