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solniwko [45]
2 years ago
6

Simplify the expression

B1%7D%7B5%7D%20%29" id="TexFormula1" title="5( \frac{1}{5} x - 1)(5x - \frac{1}{5} )" alt="5( \frac{1}{5} x - 1)(5x - \frac{1}{5} )" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
stira [4]2 years ago
6 0
The answer is (25x-1) (x-5)/5
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Which r-value represents the strongest correlation?<br> –0.83<br> –0.67<br> 0.48<br> 0.79
maks197457 [2]

Answer:

–0.83

Step-by-step explanation:

An r-value, or correlation coefficient, tells us the strength of the correlation in a linear regression.  This number ranges from -1 to 1; -1 is a perfect linear fit for a decreasing set of data, while 1 is a perfect linear fit for an increasing set of data.

The closer the r-value is to either -1 or 1, the stronger the correlation is.

The two negative numbers we have are -0.83 and -0.67.  The first one, -0.83, is 0.17 away from -1.  -0.67, on the other hand, is 0.33 away from -1.  The two positive numbers we have are 0.48 and 0.79.  The first one, 0.48, is 0.52 away from 1.  The second one, 0.79, is 0.21 away from 1.  The one that is closest to the perfect fit is -0.83, since it is only 0.17 away from a perfect fit.

8 0
3 years ago
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A recipe for 40 biscuits uses 2 cups of biscuit mix. How many biscuits are made from 1 cup of biscuit mix?​
In-s [12.5K]

Answer:

20 biscuits are made from 1 cup of biscuit mix.

Step-by-step explanation:

Divide 40 by 2 to get the unit rate, which is 20.

Hope this Helps!

5 0
3 years ago
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Write an expression for the calculation 84 divided into sevenths added to 9 divided into thirds
kogti [31]
(84/7)+ 9/3=
     12+9/3
       12+3
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7 0
3 years ago
N - 4 = 3n + 6<br> what number does n represent?
pav-90 [236]

Answer:

n = -5

Step-by-step explanation:

n - 4 = 3n + 6

n = 3n + 10

-2n = 10

n = -5

7 0
3 years ago
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Find the perimeter of a rectangle if one of its sides is 14 and the area is 98
Ratling [72]

Answer:

42

Step-by-step explanation:

Area of a rectange = bh so 98=14x

98 divided by 14 = 7

Perimeter= 2x+2y

so 2x+2y -> 28+14=42

7 0
2 years ago
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