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Iteru [2.4K]
3 years ago
9

Need help ASAP doing the test now …….

Mathematics
1 answer:
qwelly [4]3 years ago
5 0
Your answer to this question is F(45). hope u have a good day. make sure you eat and drink something
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Please somone help me<br> 40 points <br> will mark brainliest
cestrela7 [59]

Answer:

the answer is in the picture below

Step-by-step explanation:

7 0
3 years ago
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Requie<br> 2) 20 + (-45)
harkovskaia [24]

Answer:

20 + (-45) = -25

6 0
3 years ago
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A professor went to a website for rating professors and looked up the quality rating and also the "easiness" of the six full-tim
Marat540 [252]

We are asked to determine the correlation factor "r" of the given table. To do that we will first label the column for "Quality" as "x" and the column for "Easiness" as "y". Like this:

Now, we create another column with the product of "x" and "y". Like this:

Now, we will add another column with the squares of the values of "x". Like this:

Now, we add another column with the squares of the values of "y":

Now, we sum the values on each of the columns:

Now, to get the correlation factor we use the following formula:

r=\frac{n\Sigma xy-\Sigma x\Sigma y}{\sqrt{(n\Sigma x^2-(\Sigma x)^2)(n\Sigma y^2-(\Sigma y)^2)}}

Where:

\begin{gathered} \Sigma xy=\text{ sum of the column of xy} \\ \Sigma x=\text{ sum of the column x} \\ \Sigma y=\text{ sum of the column y} \\ \Sigma x^2=\text{ sum of the column x\textasciicircum2} \\ \Sigma y^2=\text{ sum of the column y\textasciicircum2} \\ n=\text{ number of rows} \end{gathered}

Now we substitute the values, we get:

r=\frac{\left(6)(70.56)-(25.2)(16.4\right)}{\sqrt{((6)(107.12)-(25.2)^2)((6)(47.82)-(16.4)^2)}}

Solving the operations:

r=0.858

Therefore, the correlation factor is 0.858. If the correlation factor approaches the values of +1, this means that there is a strong linear correlation between the variables "x" and "y" and this correlation tends to be with a positive slope.

7 0
1 year ago
Convert 3.521 g to ___ mg
inna [77]

To convert any unit to it's "milli-" form always multiply the given value by 1000. The new value will be the value of in the "milli-" form.

The question asked to us is to convert 3.521 g to mg (or milligram). Thus, all that we need to do is to multiply 3.521 with 1000 and we will get the corresponding value in milligrams. Thus, in mg, 3.521 g is:

3.521\times 1000=3521 mg

6 0
3 years ago
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Please help me solve this???
JulijaS [17]

Answer:

see explanation

Step-by-step explanation:

For the triangles to be congruent.

The hypotenuse and a leg of the triangle on the left and the hypotenuse and a leg of the triangle on the right must be congruent, thus

4y = x + 4 → (1)

x = y + 8 → (2)

Substitute x = y + 8 into (1)

4y = y + 8 + 4 = y + 12 ( subtract y from both sides )

3y = 12 ( divide both sides by 3 ) )

y = 4

Substitute y = 4 into (2)

x = 4 + 8 = 12

Thus

x = 12 and y = 4

8 0
3 years ago
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