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Lera25 [3.4K]
3 years ago
7

Write an equation of the line that passes through a pair of points:

Mathematics
2 answers:
inn [45]3 years ago
6 0

Answer: (b)

Step-by-step explanation:

the y-intercept is -3.

the slope of the line is 1x, also known as x.

Vladimir79 [104]3 years ago
4 0

Answer:

y=1x-3

Step-by-step explanation:

find the point where the line crosses the y axis, in this case it would be -3. next, find the next point where the line directly crosses a spot on the graph, this would be 3 on the x axis. find how many squares on the graph it took to get there, it would be up 3 and right 3, this would make it 3/3x, or just 1x. your equation is y=1x-3

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Nookie1986 [14]

Answer:

n = \frac{2}{3}  

I hope this helps!

3 0
3 years ago
#19<br> The distance between the points (4, 1) and (9, 1) is
kirill115 [55]

Hello!

Given the two points, (x_{1}, y_{1}) and (x_{2}, y_{2}), and to find the distance between these two points is found by using the formula:

d = \sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}

(x_{1}, y_{1}) is assigned to one the points, in this case, is (4, 1).

(x_{2}, y_{2}) is assigned to other point, which is (9, 1).

Then, plug in these values into the formula and solve.

d = \sqrt{(9-4)^{2}-(1-1)^{2}}

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4 0
3 years ago
According to records in a large hospital, the birth weights of newborns have a symmetric and bell-shaped relative frequency dist
Kamila [148]

Answer:

15.9% of babies are born with birth weight under 6.3 pounds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 6.8 pounds

Standard Deviation, σ = 0.5

We are given that the distribution of  birth weights is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(birth weight under 6.3 pounds)

P(x < 6.3)

P( x < 6.3) = P( z < \displaystyle\frac{6.3 - 6.8}{0.5}) = P(z < -1)

Calculation the value from standard normal z table, we have,  

P(x < -1) = 0.159 = 15.9\%

15.9% of babies are born with birth weight under 6.3 pounds.

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Step-by-step explanation:

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3 years ago
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swat32

Answer:

y = -2x - 3

Step-by-step explanation:

8 0
3 years ago
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