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KiRa [710]
3 years ago
5

Find the midpoint of the line segment with the given endpoints. (-3,-7) and (3,0)

Mathematics
2 answers:
Crank3 years ago
7 0
The coordinates of the midpoint:
(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})
x₁,y₁ - the coordinates of one endpoint
x₂,y₂ - the coordinates of the other endpoint

(-3,-7) \\
x_1=-3 \\ y_1=-7 \\ \\
(3,0) \\
x_2=3 \\ y_2=0 \\ \\
\frac{x_1+x_2}{2}=\frac{-3+3}{2}=\frac{0}{2}=0 \\ \\
\frac{y_1+y_2}{2}=\frac{-7+0}{2}=\frac{-7}{2}=-3.5 \\ \\
\boxed{(0,-3.5)} - \hbox{the midpoint}
garik1379 [7]3 years ago
5 0
(0,3.5)

I hope this helps
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juin [17]

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z* = critical z-value.

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n= 258

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Critical z-value for 99% confidence interval is 2.576. (By z-table)

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Hence, a 99% confidence interval for the true proportion of all college students who own a car : 0.332 < p < 0.490

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