#3 please find f (5)

Mathematics

1 answer:

tekilochka [14]3 years ago

6 0

Answer:

Step-by-step explanation:

All we are doing here is simply plugging in a 5 for x in the function and finding out the value.

$f(5)=\frac{-2}{-5(5)-19}$ and

$f(5)=\frac{-2}{-25-19}$ and

$f(5)=\frac{-2}{-44}$ so

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What is 60 + 50.45x = 57.95x and how do I know which part of the equation to solve at which time?

Aleksandr-060686 [28]

Answer:

$x=8$

Step-by-step explanation:

First, subtract 50.45x from both sides. Then divide by 7.5 on both sides.

$60+50.45x=57.95x\\60=7.5x\\x=8$

8 0

3 years ago

Please Help me Due today

Helen [10]

Answer:

Strong positive correlation

Step-by-step explanation:

The given scatterplot, where the data points are sloping upward:

The stronger the association of the two variables, the closer the Pearson correlation coefficient, r, will be to either +1 or -1 depending on whether the relationship is positive or negative, respectively.

If the value of the correlation coefficient is 0 < r < 1 then there is a positive linear trend and the data points are scattered around the line of best fit; the smaller the absolute value of r, the less well the data can be visualized by a single linear relationship. The closer the value of r to 0 the greater the variation around the line of best fit.

In the attached screenshot, where I've drawn a line across the graph: it shows that the data points are clustered around the line. It is easier to estimate that the value of r is closer to 1, which implies a strong positive relationship between two variables. My estimate is that r = 0.8.

Therefore, the correct answer is Strong Positive association.

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