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Alex787 [66]
3 years ago
6

Suppose a straight line has been used to model the relationship between two quantitative variables represented on a scatter plot

. Which of these statements are correct? Select all that apply.
1.The closer the points on the scatter plot are to the line, the worse the model fit.
2.The farther away the points on the scatter plot are from the line, the better the model fit.
3.The farther away the points on the scatter plot are from the line, the worse the model fit.
4.The closer the points on the scatter plot are to the line, the better the model fit.
Mathematics
1 answer:
masha68 [24]3 years ago
8 0

Answer:

3 and 4

Step-by-step explanation:

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harry is trying tq solve the equation y=2x^2 -x-6 using the quadratic formula he has made an error in one of the steps below
Sergeeva-Olga [200]

Answer:

Hello :

y = 2x² - x -6

y = 2 ( x² - 1/2 x - 3)

y = 2 (x² -1/2 x + 1/16 -1/16 -3)

y = 2 (( x - 1/4 )² - 49/16).....  the quadratic formula

y = 0 :  ( x - 1/4 )² - 49/16 = 0

( x - 1/4 )² - (7/4)² = 0

( x -1/4-7/4)( x -1/4+7/4)=0

(x -2)(x + 3/2) = 0

x - 2 = 0 or x + 3/2 =0

x = 2 or x = - 3/2



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3 years ago
Add 1 1/3 + (−5/6) using the number line. Select the location on the number line to plot the sum
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1/2

Step-by-step explanation:

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x >  -  \frac{20}{21}

Step-by-step explanation:

-5/2 × (3x + 4) < 6x - 3x

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-15x - 20 < 6x

-15x - 6x < 20

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y

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3 years ago
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We have been given that an artist cuts the bottom 4 inches from an empty sphere with a radius of 12 inches to make a bowl. We are asked to find the length of the rim of the bowl.

The rim of the bowl will be equal to the perimeter of circle with radius of 12 inches.

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\text{Perimeter of circle}=2\pi (12\text{ inches})

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Therefore, the rim of the bowl is approximately 75.4 inches.

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