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miss Akunina [59]
3 years ago
5

What 2 square numbers have a sum of 130

Mathematics
1 answer:
postnew [5]3 years ago
6 0
130=a²+b²
130=9²+7²
81+49=130

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How many solutions does the following system of equations have?<br> y=5/2x+2<br> 2y= 5x +4
goldfiish [28.3K]

Answer:

infinite solutions

Step-by-step explanation:

y=5/2x+2

2y= 5x +4

Multiply the first equation by 2

y = 5/2 x +2

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2y = 5x +4

Since this is identical to the second equation (they are the same), the system of equations has infinite solutions

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What is the mean absolute deviation (MAD) of the data set?<br><br> {5, 9, 9, 11, 16}
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3 0
3 years ago
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blagie [28]

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4 0
3 years ago
△STR≅△LMN, SR=7b+8, and LN=11b−12. Find b and SR.
Goryan [66]

Given:

\Delta STR\cong \Delta LMN

SR=7b+8

LN=11b-12

To find:

The value of b and SR.

Solution:

We have,

\Delta STR\cong \Delta LMN                          (Given)

ST\cong LN                                  (CPCTC)

ST=LN

Substituting the given values, we get

7b+8=11b-12

7b-11b=-8-12

-4b=-20

Divide both sides by -4.

\dfrac{-4b}{-4}=\dfrac{-20}{-4}

b=5

Now,

SR=7b+8

SR=7(5)+8

SR=35+8

SR=43

Therefore, the value of b is 5 and the measure of SR is 43 units.

6 0
3 years ago
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