5 3/5 + 2 7/10 + 5/6

Mathematics

2 answers:

nikklg [1K]3 years ago

8 0

Answer: I will give you three ways.

Exact Form: 137/15

Decimal Form: 9.13

Mixed Number Form: 9 2/15

fiasKO [112]3 years ago

4 0

Answer:

Step-by-step explanation:

5 3/5 + 2 7/10 + 5/6

= 28/5 + 27/10 + 5/6

= (336 + 162 + 50)/60

= 548/60

= 9 2/15

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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]

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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.