About in the big plateau :rectify error

Answer:

the sum of all sides of triangle is 180°. So,

x+72+63=180

x+135=180

x=180-135

x=45

Answer:

10,8,6 = 72. 9,7,5 = 56. 5,10,11 = 110

Step-by-step explanation:

• In first one, 10,8,6 = 72. The middle number on the Left Hand Side is 8. So we multiple 8 with 8+1 = 9 then we have 8×9 = 72. Thus the value on the Right Hand Side is 72.

• In second one, 9,7,5 = 64. The middle number on the Left Hand Side is 7. So we multiple 7 with 7+1 = 8 then we have 7×8 = 56 . Thus the value on the Right Hand Side is 56
• Similarly, 5,10,11 = 110. The middle number on the Left Hand Side is 10. So we multiple 10 with 10+1 = 11 then we have 10×11 = 110. Thus the value on the Right Hand Side is 110

Click here to know more about missing number:

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Since tangents from an exterior point to a circle are equal

in length.

AD=AF[Tangents from A]−−−−(i)

BD=BE[Tangents from B]−−−−(ii)

CE=CF[Tangents from C]−−−−(iii)

Now,

AB=AC [Given]

⇒AB−AD=AC−AD [ Subtracting AD from both sides ]

⇒AB−AD=AC−AF [ using (i) ]

⇒BD=CF

⇒BE=CF [ using (ii) ]

⇒BE=CE [ using (iii) ]

Hence Proved

Answer:

(A) What a fascinating thing of all was the bus?

Explanation:

because it is right exclamatory sentence.

(A) What a fascinating thing of all was the bus! will be the correct exclamatory sentence.

• A sentence can be transformed from one type to another in many ways. Here we have an assertive/positive sentence that needs to be converted into an exclamatory sentence.
• To do that, we must remember that while in the assertive form the words 'very, most' will be eliminated in the exclamatory form.
• The next step is to add and begin the exclamatory sentence from 'What'. This is kind of a replacement for the adverbs very/most.
• Then we add the adjective of the sentence in the middle and lastly, we use the subject of the sentence.
• Usually, an exclamation mark is always used at the end, so we add that too.

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Answer:

95.965 grams of NH3 are in 3.4×10^24 molecules of NH3

Explanation:

Taking into account the definition of avogadro's number, 95.965 grams of NH3 are in 3.4×1024 molecules of NH3.

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023x10²3 particles per mole. Avogadro's number applies to any substance.

Then you can apply the following rule of three: if 6.023×1023 molecules are contained in 1 mole of NH3, then 3.4×10²4 molecules are contained in how many moles of NH3?

amount of moles of NH3= (3.4×10²4 atoms x 1 mole)+ 6.023×10²³ atoms

amount of moles of NH3= 5.645 moles

Being the molar mass of NH3, that is, the amount of mass that a substance contains in one mole, 17 mode, then the mole amount of mass that 5.645 moles of the compound contain can be calculated as:

5.645 molesx 17

[tex] \frac{g}{mole} [/tex]

= 95.965 grams

Finally, 95.965 grams of NH3 are in 3.4×10^24 molecules of NH3