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3 years ago

Can any one help me with this one

Mathematics

2 answers:

Svetlanka [38]3 years ago

7 0

Answer:

5x+10=10+11+121

5x+10=142

5x=132

x=26.4

Step-by-step explanation:

1. Set the problem out like shown above.

2. Add the numbers EXCEPT the variable

3. Subtract so that the variable can be by itself then divide

4. X is whatever answer you get

Hope this helped ya!

VMariaS [17]3 years ago

3 0

Use Thales' theorem..

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3 years ago

I need help on number 18

zloy xaker [14]

Answer:

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Step-by-step explanation:

Recall the formula for the volume of a cone: $Volume = \pi R^{2} \frac{h}{3}$

Where R is the radius of the cone's circular base (in your case half of 80 km,(that is 40 km)

And h stands for the height of the cone (in your case 21 km)

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We round it to the number of decimals your problem request (let's say to one decimal) and also include the cubic units:

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