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antoniya [11.8K]
3 years ago
13

Pls how do you verify this ​

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0
I agree with the other answer but if you’re wondering why, you substitute it to see if you are right. Example: what is the value of x if x + 3 =4? X is 1. So to verify it you would replace x with 1. So it would be: 1+3=4. It proves your answer.
aev [14]3 years ago
3 0
Plug 15 in for x i think
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Answer:

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Step-by-step explanation:

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2 years ago
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andreyandreev [35.5K]

Answer:

\cos x=\dfrac{8}{f}

Step-by-step explanation:

Given that,

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We know that,

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Using the above relation,

\dfrac{e}{8}=\dfrac{\dfrac{e}{f}}{\cos x}\\\\\cos x=\dfrac{\dfrac{e}{f}}{\dfrac{e}{8}}\\\\=\dfrac{e}{f}\times \dfrac{8}{e}\\\\=\dfrac{8}{f}

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7 0
3 years ago
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Alla [95]

Answer:

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Step-by-step explanation:

the equation would be 500-4x=268 with x being his age.

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2 years ago
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sattari [20]
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Good evening:)

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C

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Have a wonderful day!
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