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Ede4ka [16]
3 years ago
11

A soccer ball is kicked from ground level. The function y = -12x (x - 6) shows the height in feet) of the

Mathematics
1 answer:
enot [183]3 years ago
8 0

Answer:

6 seconds

Step-by-step explanation:

Given

y = - 12x(x - 6)

When the ball hits the ground then height of ball is zero

let y = 0 , that is

- 12x(x - 6) = 0

Equate each factor to zero and solve for x

- 12x = 0 ⇒ x = 0 ← when ball is first kicked

x - 6 = 0 ⇒ x = 6 ← when the ball hits the ground.

The ball hits the ground after 6 seconds

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A standard die is rolled two times. What is the probability that it lands on 5 both times?
klio [65]

Answer:

1/36

Step-by-step explanation:

A die can roll a 1,2,3,4,5,6

P (5) = number of 5's / total

        = 1/6

The 2nd roll is independent so the probability is the same

P (5) = number of 5's / total

        = 1/6

P(5, 5) = 1/6*1/6 = 1/36

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Make r the subject of the formula t=r/r-3
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Answer:

r = t(r-3)

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3 years ago
At a track meet , 10 different runners compete in the 1600m run.
Zanzabum

Answer:

There are 3,628,800 different ways for the runners to finish.

Step-by-step explanation:

Arrangments of x elements:

The number of possible arrangments of x elements is given by the following formula:

A_{x} = x!

In this question:

10 different runners, which means that the number of different ways that there are for the runners to finish is an arrangment of 10 elements. So

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There are 3,628,800 different ways for the runners to finish.

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