Which fraction is equivalent t?

Mathematics

1 answer:

GaryK [48]2 years ago

7 0

Answer:

4/16, because 5/2= 1/4 and 1/4 = 4/16

Step-by-step explanation:

If we simplify we know that 5/20 is 1/4, and if we simplify 4/16, we also get 1/4.

4/16 x 4 = 16/16

5/20 x 4 = 20/20

Hope this helped! :)

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A ball is thrown upward from ground level. Its height h, in feet, above the ground after t seconds is h-48t -16t^2.

Marat540 [252]

Answer:

36 feet.

Step-by-step explanation:

We have been given that a ball is thrown upward from ground level. Its height h, in feet, above the ground after t seconds is $h(t)=-48t -16t^2$ . We are asked to find the maximum height of the ball.

We can see that our given equation is a downward opening parabola, so its maximum height will be the vertex of the parabola.

To find the maximum height of the ball, we need to find y-coordinate of vertex of parabola.

Let us find x-coordinate of parabola using formula $x=-\frac{b}{2a}$ .

$x=-\frac{-48}{2(-16)}$

$x=-\frac{48}{32}$

$x=-\frac{3}{2}$

So, the x-coordinate of the parabola is $-\frac{3}{2}$ . Now, we will substitute $x=-\frac{3}{2}$ in our given equation to find y-coordinate of parabola.