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SOVA2 [1]
3 years ago
11

PLEASE HELP!! this is ratios

Mathematics
2 answers:
DIA [1.3K]3 years ago
6 0

Answer:

1. 8:5

2. 17;4

3. 23:6

4. I don't know

s344n2d4d5 [400]3 years ago
3 0
1. 8:5
2. 4:19
3. 6:23
4: How you find an equivalent fraction can either be dividing or multiplying by 2. 2 equivalent ratios to question 1 would be 16:10 and since we can’t divide by 5, we multiply again which would be 32:20.
(Hope this was helpful ^^)
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<h3>How to use regression to find the equation for the line of best fit?</h3>

Consider the table in the image attached:

∑x = 29,  ∑y = 74, ∑x²= 125, ∑xy = 288,  n = 10 (number data points)

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a = ( n∑xy -(∑x)(∑y) ) / ( n∑x² - (∑x)² )

a  = (10×288 - 29×74) / ( 10×125-29² )

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x' =  ∑x/n

x' = 29/10 = 2.9

y' = ∑y/n

y' = 74/10 = 7.4

b = y' - ax'

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ŷ = ax + b

ŷ= 1.795x +2.195

Therefore,  the equation for the line of best fit for the data is ŷ= 1.795x +2.195

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