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wariber [46]
3 years ago
13

Can you help me please?

Mathematics
1 answer:
padilas [110]3 years ago
3 0

Answer: A

Step-by-step explanation:

x can never be equal to itself if you add any number to it.

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The time taken by the rock will be 8.77 seconds.

<h3>What is speed?</h3>

Speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance.

Given that:-

The equation for free fall at the surface of some planet (s in meters, t in seconds) is s = 2.86t²

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  • <em>c.</em><em>)</em><em> </em><em>x</em><em>=</em><em>2</em>

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