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viktelen [127]
3 years ago
15

Sharita does special typing jobs for scientists. she charges 13 dollars for the first 3 pages and 3 dollars for each additional

page. Sonia a biologist paid 103 dollars to have a paper typed. How many pages long was Sonia's paper?
Mathematics
1 answer:
Vladimir [108]3 years ago
3 0
33 Pages. 103-13=90 dollars 90/3=30 pages 30 pages + 3=33
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The true statement is that only line A is a well-placed line of best fit

<h3>How to determine the true statement?</h3>

The scatter plots are not given. However, the question can still be answered

The features of the given lines of best fits are:

<u>Line A</u>

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<u>Line B</u>

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For a line of best fit to be well-placed, the line must divide the points on the scatter plot equally.

From the given features, we can see that line A can be considered as a good line of best fit, because it divides the points on the scatter plot equally.

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2 years ago
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Answer:

U₂₁ and U₂₂ fits in the line of upper triangular

Step-by-step explanation:

As explain in the question

An upper triangular matric is square matrix with all zeros below its daignal. A lower triangular matrix is a square matrix with all zeros above its diagonal.

(as shown in the attached image)

(a)for all 3×3 upper triangular matirices U, verify that U2 is also upper triangular

for a matrices U (having a 3*3 matrix), assuming for example, U is given below:

U = \left[\begin{array}{ccc}1&2&3\\0&5&6\\0&0&9\end{array}\right]

the element in the upper triangular are 1,2,3,5,6,9 (U₁₁, U₁₂, U₁₃; , U₂₂, U₂₃, U₂₂)

while lower triangular are 0,0,0, the element in the lower triangular are (U₂₁, U₃₁,U₃₂)

U₂₁ and U₂₂ fits in the line of upper triangular

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How wold you put 4/1 as a fraction?
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Step-by-step explanation:

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