Mathematics: P^2 - 8p - 20 identify the expression as a perfect-square trinomial, a difference of squares , or neither . Factor the expression.

P^2 - 8p - 20 identify the expression as a perfect-square

Dweath50

24.01.2022

Step-by-step explanation:

I think this is it hope it is

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Jerrikasmith28

28.11.2020

r represents a significant linear correlation.

Step-by-step explanation:

GIven : Linear correlation coefficient: r = 0.543

Sample size: n= 25

Significance levle: $\alpha=0.05$

Degree of freedom : n-2 = 25-2=23

Now, we check r critical value table for value with df = 23 and $\alpha=0.05$ .

Critical value = ±0.396 [From r critical value table]

Since r = 0.543 > 0.396, that means there is significant linear correlation.

Hence, r represents a significant linear correlation.

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