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Naya [18.7K]
2 years ago
10

A line passes through the point (-8, -9) and has a slope of

Mathematics
1 answer:
Umnica [9.8K]2 years ago
7 0

Answer:

y = -5/4x -19

Step-by-step explanation:

Hi there!

We are given that a line passes through (-8, -9), and has a slope of -5/4

We want to write the equation of the line in slope-intercept form

Slope-intercept form is given as y=mx+b, where m is the slope and b is the y intercept.

As we're already given that the slope of the line is -5/4, we can immediately plug it into the equation:

y=-5/4x+b

Now we must find b

As the equation passes through the point (-8, -9), (meaning that if we plug the values of (-8, -9) into the equation, we should be getting a true statement), we can use it to solve for b

Substitute -8 as x and -9 as y into the equation:

-9=-5/4(-8)+b

Multiply

-9=10+b

Subtract 10 from both sides

-19=b

Substitute -19 as b

y = -5/4x -19

Hope this helps!

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A bag contains 6 red balls numbered 1, 2, 4, 5, 8, 9 and 4 white balls numbered 3, 6, 7, 10,
geniusboy [140]

Answer:

60%

a. 80%

b. 70%

Step-by-step explanation:

In this case we are first asked for the probability that when drawing a ball at random it is 8, 9 and 4 white balls numbered 3, 6, 7, 10, that is 6 balls. We know that there are a total of 10 balls since they are 6 red and 4 white, 6 + 4 = 10.

Therefore the probability is:

6/10 = 0.6

that is to say that the probability that it is one of these balls is 60%

to. that is red or odd,

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8/10 = 0.8

In other words, the probability is 80%

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the probability is:

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The probability is 70%

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