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BaLLatris [955]
3 years ago
7

Need help! 20 points! No links please

Mathematics
1 answer:
denis-greek [22]3 years ago
6 0

Answer:

480 in3

Step-by-step explanation:

So the first thing I looked at was how to find the volume of a 3-dimensional square. Why do we have to do this? Well, we can see that the shape is made up of 3 different types of 3-dimensional cubes so to find the answer all we have to do is figure out the volume for each separate cube and add them all together.

So, to find the volume of a cube we have to multiply the area (length x width) by the height of each cube.

Let's start with the largest cube so we would multiply 5 x 12 x 4 which equals <u>v = 240</u>

Now let us do the second to largest by multiplying 8 x 5 x 4 = which equals    <u>v = 160</u>

Finally, on to the smallest cube, 4 x 4 x 5 =

<u>v = 80</u>

So now if we add <u><em>240 + 160 + 80</em></u> that will give us 480

So the answer is <u><em>480 in3</em></u>

Hope this is correct I was a little confused while I was figuring it out :0 Sorry if it is wrong :(

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Side note: we can prove the triangles to be similar using the AA (angle angle) similarity theorem. The first pair of angles are the vertical angles DOC and BOA which are congruent to each other.The second pair is CDB and ABD which are congruent by the alternate interior angle theorem. Check out the attached image for a visual.

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3 years ago
A system of equations and its solution are given below.
Fittoniya [83]
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Yakvenalex [24]

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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