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Minchanka [31]
3 years ago
11

Are my answers correct

Mathematics
2 answers:
QveST [7]3 years ago
4 0
Yes they are . :D good luck showing it to teacher

lyudmila [28]3 years ago
3 0
Yes your answers look correct nice job
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Hello there! <br><br> Can I get someone help please ? Thanks!
natulia [17]
Since they are right triangles use Pythagorean Theorem.
a^2 + b^2 = c^2 where c is the hypotenuse.

a.  12^2 + b^2 = 13^2
144 + b^2 = 169
subtract 144 from both sides
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take the square root of both sides
t = 5  This is also know as a Pythagorean Triple 5-12-13

b.  a^2 + 9^2 = 12^2
     a^2 + 81 = 144
subtract 81 from both sides
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take the square root of both sides
a = √63
a = √(9 * 7)
a = 3√7

c.   6^2 + 9^2 = c^2
    36 + 81 = c^2
117 = c^2
take the square root of each side
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4 0
3 years ago
Which of the following best describes the solution to the system of equations below?
seraphim [82]

Answer:

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Step-by-step explanation:

5 0
3 years ago
10.219.835 nearest tens place
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