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Luba_88 [7]
3 years ago
12

Please help me with this

Mathematics
1 answer:
weeeeeb [17]3 years ago
5 0
The answer is B. -3 because that's x and you add them together and get greater than.
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The difference between 8 and a number is 5.
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If x+y=10 and x-y=6 what is this value of x cube - y cube​
Jlenok [28]

Answer:

x cubed minus y cubed is equal to 504

Step-by-step explanation:

First we need to know what the values of x and y are.  We can do this pretty easily, by just solving both equations for x, and equating them to each other:

With the first:

x + y = 10

x = 10 - y

And with the other

x - y = 6

x = 6 + y

Now that we have two definitions of x, we can say that the expressions are equal, and solve for y:

10 - y = 6 + y

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4 = 2y

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And now that we know what y is, we can find x:

x = 10 - y

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8 - y = 6

-y = 6 - 8

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So we know we solved that correctly.

Now if we cube each number, eight cubed is equal to 512, and 2 cubed is equal to 8.  If we subtract the latter from the former we get 504.

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What are the special right triangle measures?
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