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Galina-37 [17]
3 years ago
10

Margo can purchase tile at a store for $0.99 per tile and rent a tile saw for $18. At another store she can

Mathematics
1 answer:
BigorU [14]3 years ago
8 0

Answer:

She Can Buy 9 tiles before it goes over the price of the other store

Step-by-step explanation:

I multiplied 1.89 times 9 and I got the answer

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ANTONII [103]

Hi,

Concept: The given problem is based on 3 Dimensional Geometry.

Consider three axes in defined space be x, y & z in their positive directions then - x , -y & -z be their negative axes.

The coordinate of given point A(x1, y1, z1) = (1, -3, 4)

If we take the reflection of point A about xz - plane x and z coordinates will remain same and y-coordinate will give its reflection. It means the value of y-coordinate will be changed which will be +ve 3.

Hence, the reflection of A(1, -3, 4) will be A'(x2, y2,z2= (1, 3, 4).

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77julia77 [94]

Answer:

B) The sum of the squared residuals

Step-by-step explanation:

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Not all the points will lie on the Least Square Regression Line in all cases. Some points will be above line and some points will be below the line. The vertical distance between the points and the line is known as residual. Since, some points are above the line and some are below, the sum of residuals is always zero for a Least Square Regression Line.

Since, we want to minimize the overall error(residual) so that our line is as close to the points as possible, considering the sum of residuals wont be helpful as it will always be zero. So we square the residuals first and them sum them. This always gives a positive value. The Least Square Regression Line minimizes this sum of residuals and the result is a line of Best Fit for the bivariate data.

Therefore, option B gives the correct answer.

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I hope i helped


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3 years ago
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