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katrin2010 [14]
2 years ago
13

9/29/2020

Mathematics
2 answers:
Contact [7]2 years ago
8 0

Answer:  -2x + 5y = 8

Step-by-step explanation:

Since the lines must be parallel, the slopes must be the same, so keep the coefficients of x and y

Substitute the values of x and y from the given coordinate  (6,4) to find the new constant, b, the y-intercept.

-2x + 5y = b

-2(6) + 5(4) = b

-12 + 20 = b

8 = b

Rewrite the original equation substituting the new b for the original -15

-2x + 5y = 8

vovangra [49]2 years ago
8 0

Answer:

  • y = 2/5x + 8/5

Step-by-step explanation:

<u>Slope - intercept form</u>

  • y = mx + b

<u>Given line</u>

  • -2x + 5y = -15

<u>Converting the equation into slope-intercept form</u>

  • -2x + 5y = -15
  • 5y = 2x - 15
  • y = 2/5x - 3

<u>Parallel lines have same slope of 2/5</u>

  • y = 2/5x + b

<u>Using point (6, 4) lets find it's y-intercept (b)</u>

  • 4 = 2/5*6 + b
  • b = 4 - 12/5 = 8/5

<u>So the line is</u>

  • y = 2/5x + 8/5
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Using it's concept, it is found that there is a 0.152 = 15.2% probability that they are both Democrats.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

Two voters are selected, each with 39% probability of being Democrats, hence the probability of both being Democrats is given by:

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More can be learned about probabilities at brainly.com/question/24372153

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What are the steps to this
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And same steps for question 25;
m is given as -1/3

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(b)

F_{U_2}(u_2)=P(3-Y\le u_2)=P(Y\ge3-u_2)=1-P(Y

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