3 years ago

Please help, less than an hr tell it’s due

Mathematics

1 answer:

Zolol [24]3 years ago

8 0

Answer:

OKKKKK

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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kondor19780726 [428]

Answer:

1. Exact Form: 71/28 Mixed Number Form: 2 15/28

2. Exact Form: 27/10 Mixed Number Form: 2 7/10

3. Exact Form: 5/6

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Karen claps her hand and hears the echo from a distant wall 0.113 s later. How far away is the wall? The speed of sound in air i

insens350 [35]

Answer:

19.3795 m

Step-by-step explanation:

If sound travels at 343 m/s and it took Karen 0.113 s to hear the echo from the wall, the distance travelled by the sound is:

$D=343\frac{m}{s} *0.113\ s\\D= 38.759\ m$

Note that the distance calculated above is the distance travelled from Karen to the wall and then back from the wall to Karen. Therefore, the distance between Karen and the wall is:

$d=\frac{38.759}{2}\\d=19.3795\ m$

The wall is 19.3795 m away from Karen.

3 0

3 years ago