3 years ago

Can anyone please help me with my math homework!!!

Mathematics

1 answer:

Lena [83]3 years ago

7 0

Number 8 is 24 hope I help please give me brainiest<span />

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ツ---Graph y=-x^2-2. Identify the vertex of the graph.Tell whether it is a minimum or maximum.---ツ

balandron [24]

Hey!

Hope this Helps...

~~~~~~~~~~~~~~~~~~~~~~~~~

Below, I added what the graph of (x^2)-2 looks like...

The answer is A. (0, -2); Minimum

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3 years ago

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zlopas [31]

4116 first answer 7 times 8 subtract 35.Second multiply by 14.Lastly solve 7 times 2 and multiply it by what you got multiplying 14.

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2 years ago

A train whistle is 580 Hz when stationary. It is coming toward you at 18.8 m/s. What frequency do you hear?

Usimov [2.4K]

Answer:

612 Hz.

Step-by-step explanation:

The frequency of the sound will be proportionally higher when coming towards you. The increase is related to the speed of the train.

So the frequency will be:

580 + (580 / 343) * 18.8

= 612 Hz.

This is called the Doppler effect.

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2 years ago

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What is (3.5×10)÷(7×10^-9)?<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3.5%20%5Ctimes%2010%7D%7B7%20%5Ctimes%20%20%7B10%7

Brilliant_brown [7]

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5 * 10^18

Step-by-step explanation:

(3.5×10)÷(7×10^-9)

= (3.5 / 7) / 10^(10+9)

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3 years ago

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A number that when multiplied by itself equals the original number?

yuradex [85]

Answer:

Step-by-step explanation:

Multiplying 1 · 1 = 1

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