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LenKa [72]
3 years ago
15

Two trains are traveling at constant speeds on different tracks.​

Mathematics
1 answer:
galben [10]3 years ago
5 0

Answer:

the desktop is not clearly visible

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Evaluate the function at x = −2 and x = 4
sergey [27]
At x=-2, f(x)=-1. at x=4, f(x)=-13.
4 0
3 years ago
Read 2 more answers
Find the distance from point A(−1, 7) to the line y=3x. Round your answer to the nearest tenth.
bearhunter [10]

Answer:

<em>The distance from the point to the line is approximately 3.2 units</em>

Step-by-step explanation:

<u>Distance From a Point to a Line</u>

Is the shortest distance from a given point to any point on an infinite straight line. The shortest distance occurs when the segment from the point and the line are perpendiculars.

If the line is given by the equation ax + by + c = 0, where a, b and c are real constants, the distance from the line to a point (x0,y0) is

\displaystyle d= \frac{|ax_0+by_0+c|}{\sqrt{a^2+b^2}}

The line is given by the equation:

y=3x. We need to transform it into the specified form.

Subtracting 3x:

y - 3x = 0

Comparing with the general form of the line, we have

a=-3, b=1, c=0

The point (xo,yo) is (-1,7), thus:

\displaystyle d= \frac{|-3\cdot (-1)+1\cdot 7+0|}{\sqrt{(-3)^2+1^2}}

\displaystyle d= \frac{|3+7|}{\sqrt{9+1}}

\displaystyle d= \frac{|10|}{\sqrt{10}}

\displaystyle d= \frac{10}{\sqrt{10}}

d\approx 3.2

The distance from the point to the line is approximately 3.2 units

4 0
3 years ago
Help me please with this question
Inessa05 [86]

Answer:

the first one

Step-by-step explanation:

its this one because cest logique

3 0
3 years ago
Just trying to pass math man
makkiz [27]
The answer is 3x^2 +3x
6 0
3 years ago
PLEASE HRY ILL MARK BRAINLIEST
KatRina [158]
The general equation of the line is 3x−2y−4
4 0
3 years ago
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