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Otrada [13]
3 years ago
14

1. Write an equation to model the data in the table.

Mathematics
1 answer:
Vlad [161]3 years ago
3 0
Number 1 is b because the y intercept is 3 since 0 and 3 correspond and if you plug rag of the x values into the equation, you’ll get the y value as the answer. number 2 is c because when you plug the x values into the equation you will get the y value
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The path of a football can be modelled by the equation, h=-10d2+120d , where h represents the height, in metres, of the football
Marta_Voda [28]

Answer:

12 m

Step-by-step explanation:

The path of a football has been modeled by the equation:

h= -10d^2+120d

where h represents the height and d represents the horizontal distance.

When the ball lands, it means that its height is back at 0 metres. This means that we have to find horizontal distance, d, when height, h, is 0.

=> 0= -10d^2+120d

=> 10d^2 - 120d = 0

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∴ d = 0 m

and

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=> d = 120 / 10 = 12 m

There are two solutions for d when h = 0 m.

The first solution (d = 0 m) is a case where the ball has not been thrown at all. This means the ball has not moved away from the football player and it is still on the ground.

The second solution is the answer to our problem (d = 12 m). The ball lands at a horizontal distance of 12 m

3 0
3 years ago
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Novay_Z [31]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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Sauron [17]

Answer:

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Step-by-step explanation:

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olya-2409 [2.1K]

Answer:

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210 - (-30) = 210 + 30 = 240

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2 years ago
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