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kogti [31]
3 years ago
12

Rounded to three decimal places, what is the value of r for this data set?

Mathematics
2 answers:
GrogVix [38]3 years ago
5 0
We are with the data set:
<span>Variable X: 8, 15, 3, 7, 2, 14, 20
Variable Y: 24, 41, 10, 22, 8, 40, 59
The value of R for this set is
</span><span>A:0.998
</span><span>Getting the square of R would give us the correlation coefficient.</span><span />
Lelu [443]3 years ago
4 0
Hello there.

<span>Rounded to three decimal places, what is the value of r for this data set?

Variable X: 8,15,3,7,2,14,20
Variable Y: 24,41,10,22,8,40,59

</span><span>A:0.998</span>
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Identify the trinomial that is a perfect square. 81x^2 − 70x 16 64x^2 − 90x 25 81x^2 − 72x 16 64x^2 − 70x 25
Vilka [71]
Hmm
(a+b)^2=(a+b)(a+b)=a^2+2ab+b^2

basically
for
ax^2+bx+c
it is a perfect trinomial when
b=2(√a)(√c)
remember to take both positive and negative roots into consideration
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5 0
3 years ago
Mm
Novay_Z [31]

Answer:

x + 2(2x-4) = 10

Step-by-step explanation:

Here in this question, we want to select which is the correct answer if we substitute for the value of y in the second equation, using the first.

In the first, we have;

y = 2x -4

Now, let’s input this value of y into the second equation.

By direct substitution, what we have is the following;

x + 2y = 10

—-> x + 2(2x -4) = 10

8 0
3 years ago
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