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Naya [18.7K]
3 years ago
5

Which of the following equations is quadratic?

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0
Hello

The quadratic equation is the second one

Have a nice day
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1 3/4 miles in twenty minutes
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1 3/4 mile in 20 minutes?  Multiply both figures by 3:

7 miles in 60 minutes, or 7 miles in 1 hour, or 7 mph.
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The least squares regression line minimizes the sum of the:
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Answer:

d) Squared differences between actual and predicted Y values.

Step-by-step explanation:

Regression is called "least squares" regression line. The line takes the form = a + b*X where a and b are both constants. Value of Y and X is specific value of independent variable.Such formula could be used to generate values of given value X.

For example,

suppose a = 10 and b = 7. If X is 10, then  predicted value for Y of 45 (from 10 + 5*7). It turns out that with any two variables X and Y. In other words, there exists one formula that will produce the best, or most accurate predictions for Y given X. Any other equation would not fit as well and would predict Y with more error. That equation is called the least squares regression equation.

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3 0
4 years ago
Find x for me i need help.
vesna_86 [32]

Answer:

X is 70 degrees

Step-by-step explanation:

In a triangle, all the angles add up to 180.

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x=180-(48+62)

x=70

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