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san4es73 [151]
2 years ago
5

Help with Math Please... need in 5 min or less.

Mathematics
2 answers:
hoa [83]2 years ago
3 0

Answer:

\sqrt{61}

Step-by-step explanation:

We see that diagonal AB is also the hypotenuse of a triangle where the other 2 side lengths are 4 and sqrt{45}. Using the Pythagorean theorem, we get that diagonal AB is  \sqrt{61}

horrorfan [7]2 years ago
3 0

\sqrt{61}= the answer

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If x + y = 4 and x2 − y2 = 64, what is the value of (x − y)?
murzikaleks [220]

The value of (x-y) is 16

Further explanation:

We have to use the given values to find the value

Given

x+y=4\\and\\x^2-y^2=64

We will use:

x^2-y^2=64

Simplifying by using: x^2-y^2=(x+y)(x-y)

So,

(x+y)(x-y)=64

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Putting the value in equation

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Dividing both sides by 4

\frac{4(x-y)}{4}=\frac{64}{4}\\x-y=16

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Keywords: Algebraic formulas, Simplification

Learn more about algebraic expressions at:

  • brainly.com/question/10879401
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#LearnwithBrainly

7 0
2 years ago
If y varies directly as x, and y = 10 when x = 9, find y when x = 1/9
Vinvika [58]

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2 years ago
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FinnZ [79.3K]
50% means half so divide 170 by 2,
170/2=85
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Hope this helped!!
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