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anygoal [31]
3 years ago
7

What does an r value of −1 represent in correlation?

Mathematics
1 answer:
BARSIC [14]3 years ago
4 0
It means the scatter plot is a line with negative slope. The relation is perfectly described by a linear equation.
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Solve for x in the equation x² - 4x - 9 = 29.
alexandr1967 [171]

Answer: First option.


Step-by-step explanation:

 1. To solve this problem you can applly the quadratic formula, which is shown below:

 x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}

2. The quadratic  equation is:

x^{2}-4x-9-29=0\\x^{2}-4x-38=0

3. Then:

a=1

b=-4

c=-38

4. Therefore, when you substitute these values into the quadratic formula, you obtain the following result:

x=\frac{-(-4)+/-\sqrt{(-4)^{2}-4(1)(-38)}}{2(1)}

x=2±√42


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3 years ago
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Which equation describes a function that is NOT linear?
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it’s the third one

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2 years ago
64% of 75 tiles is?
noname [10]
64\% \ of \ 75=64\% \times 75= \frac{64}{100} \times 75=\frac{16}{25} \times 75=16 \times 3=48

64% of 75 tiles is 48 tiles.
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Convert 213base four to base5​
kakasveta [241]

Answer:

213 in base 4 = 124 in base 5

Step-by-step explanation:

First we convert base 4 to base 10

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Now we convert base 10 to base 5

39/5  

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Hence 213 in base 4 = 124 in base 5

4 0
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