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3 years ago

I will give you brainly for the best and fastest answer

Mathematics

1 answer:

Natali [406]3 years ago

4 0

Replace y in the second equation with the value of Y from the first equation:

-x - 3 = 5

Add 3 to both sides:

-x = 8

Multiply both sides by -1:

x = -8

The answer is:

(-8,3)

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Andrea is told that the means of two groups in a study were statistically significant. She knows the means and standard deviatio

salantis [7]

Answer:

Cohen's D

Step-by-step explanation:

Cohen's D is a statistic that measures effect size. It shows standardised difference between 2 means.

Effect size is defined as how large the effect of a something is or its magnitude.

Cohen's D works effectively when the sample is >50 (that is for large samples). However a correction factor can be used to make results from small samples more accurate

The formular for Cohen's D is:

D = (mean1 - mean2) ÷ (√({standard deviation1}^2 + {standard deviation 2}^2)/2)

This is the most appropriate method in the given scenario

5 0

3 years ago

Help plz its a mathematical punnet square

yaroslaw [1]

Answer:

X 2 -7

-9 -18 126

3 -54 -6,804

1944 7.71

0.00396604938

Step-by-step explanation:

I tried. Sorry if it's wrong I've never done a mathematical punnet square before.

5 0

3 years ago

Help how do I solve this and how do I do it

Alja [10]

Answer:

C. 30+18x

Step-by-step explanation:

6x5=30

6x3=18

30+18x

3 0

3 years ago

Read 2 more answers

Please Help ASAP 20 points

oksano4ka [1.4K]

The answers to the questions

3 0

3 years ago

Will give brainlist

kicyunya [14]

Answer:

second answer

Step-by-step explanation:

yards is commonly used for large sparse area measurements

8 0

3 years ago