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coontcakes
20.08.2019 •
Mathematics
How many inch cubes can fit into an empty box with a volume of 2 cubic feet?
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Ответ:
1 foot = 12 inches
Multiply the 2 feet by 12 which should be:
12×2=24
So 24 cubic inches can be fit into a empty box with a volume of 2 cubic feet.
Hope this helps!
Ответ:
Step-by-step explanation:
You are finding the height of the building with an angle of elevation, therefore we need to solve for EC to add it to BA [10 metres] and use TRIGONOMETRIC RATIOS to arrive at our conclusion. Just in case you have forgotten what they were, here they are:
We can now solve for EC:
OR
Now that you have solved for EC, you can now add it to your original 10 metres to get
metres. As a decimal, you would get
metres. You can go ahead and round this off if necessary.
** The reason why the cotangent [or tangent] ratio was used was because EA is equivalent to DB by the definition of a rectangle. It has two pairs of parallel and congruent sides with four right angles. Plus, that is the adjacent side of the triangle, while EC is the opposite side of the triangle, so we knew our ratios were correct.
I am joyous to assist you at any time.