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lozanna [386]
3 years ago
12

Find a solution to the following system of equations. –5x + 2y = 9 3x + 5y = 7

Mathematics
2 answers:
jonny [76]3 years ago
4 0
D.
-5(-1) + 2(2) = 5 + 4 = 9
-3 + 10 = 7
Lyrx [107]3 years ago
4 0
The answer is D=(-1,2)
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The sum of two numbers is 58. The smaller number is 16 less than the larger number. What are the numbers?
MissTica

Answer:

hope it may help you

Step-by-step explanation:

n and n+14 are the numbers or you can use n and n-14; either way

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28 and 30

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6 0
3 years ago
The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is Ten pairs
Natalija [7]

Answer:

The correct option is 90.2.

Step-by-step explanation:

The general form of a least square regression line is:

y=\alpha +\beta x

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>α</em> = intercept

<em>β</em> = slope

The regression equation relating attitude rating (<em>x</em>) and job performance rating (<em>y</em>) for the employees of a company is:

y=11.7+1.02x

In this case the dependent variable is the job performance rating for the employees of a company and the independent variable is their attitude rating.

This implies that the for an employee of the company the job performance rating is based on their attitude towards work.

Compute the value of <em>y</em> for <em>x</em> = 77 as follows:

y=11.7+1.02x

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The predicted value of job performance rating for a person whose attitude rating is 77 is 90.2.

Thus, the correct option is 90.2.

4 0
3 years ago
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