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AlladinOne [14]
3 years ago
8

Please help me, i’m about to fail and i have another class on top of this !! you’ll save me.

Mathematics
1 answer:
Nataly_w [17]3 years ago
7 0
((There has been a malfunction or this users account may have been deleted)))....
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Round 63849 to the nearest ten,nearest hundred nearest thousand and the nearest ten thousand
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<span>63,849 rounded to the nearest ten is 63,850, to the nearest hundred is 63,800, to the nearest thousand is 64,000 and to the nearest ten thousand is 60,000.</span>
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-4 + 4 <br> Same signs? <br> Different sign?<br> Add/Subtract?
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Step-by-step explanation:

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Need help with a math question
Mekhanik [1.2K]

Answer:

z =3\sqrt{13}

Step-by-step explanation:

In the figure you can identify up to 3 straight triangles.

To solve the problem, write the Pythagorean theorem for each triangle.

<em>Triangle 1</em>

13^2 = z^2 + x^2

<em>Triangle 2</em>

z^2 = y^2 + 9^2

<em>Triangle 3</em>

x^2 = y^2 + 4^2

Now substitute equation 2 and equation 3 in equation 1 and solve for y.

13^2 = y^2 + 9^2 + y^2 + 4^2

13^2 = 2y^2 + 9^2 + 4^2

169 = 2y^2 + 81 + 16

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substitute the value of y in the second equation and solve for z

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z^2 = 117

z = \sqrt{117}

z =3\sqrt{13}

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4 years ago
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