3 years ago

Please find answer.

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

8 0

Answer:

Again, the answer is (1,-2)

Step-by-step explanation:

Substitute the values

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If one atom of carbon weighs 1.99 × 10^−22 g and one atom of hydrogen weighs 1.67 × 10^−27 g, which element weighs more? Explain

garik1379 [7]

Answer:

The atom of carbon weighs more

Step-by-step explanation:

we have

<em>Atom of carbon weighs</em>

$1.99*10^{-22}\ g=1.99*10^{-22}(\frac{10^{5}}{10^{5}})=199,000*10^{-22}(\frac{1}{10^{5}})=199,000*10^{-27}\ g$

<em>Atom of hydrogen weighs</em>

$1.67*10^{-27}\ g$

Compare

$199,000*10^{-27}\ g > 1.67*10^{-27}\ g$

therefore

The atom of carbon weighs more

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3 years ago

What is x in 2x − 3 + 4x = 21

Serggg [28]

Answer: x = 4

Step-by-step explanation:

2x - 3 + 4x = 21

6x - 3 = 21

6x - 3 (+3) = 21 (+3)

6x = 24

24/6

x = 4

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2 years ago

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Sergeeva-Olga [200]

Step-by-step explanation:

75 . 727 is your answer

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Zigmanuir [339]

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3 years ago

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Aleksandr-060686 [28]

You have to explain how you knew to use 55 and 120, not another option.

Hope it helped! :)

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3 years ago

Please find answer. ​

Please find answer.