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k0ka [10]
3 years ago
5

Perimeter of triangle:20

Mathematics
1 answer:
EleoNora [17]3 years ago
4 0
What do you want me to do
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The points with coordinates (x, -1), (2,2), and (4,3) lie on the same line. What is the value of x?
borishaifa [10]

Find the slope of the line passing throught the points (2, 2) and (4, 3).

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{3-2}{4-2}=\dfrac{1}{2}

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:

Substitute:

m=\dfrac{-1-2}{x-2}=\dfrac{-3}{x-2}

We have the equation:

\dfrac{-3}{x-2}=\dfrac{1}{2}        <em>cross multiply</em>

(1)(x-2)=(-3)(2)

x-2=-6           <em>add 2 to both sides</em>

x=-4

<h3>Answer: x = -4.</h3>
7 0
2 years ago
Please help!!!!!!!!!!!!!!!
babunello [35]

Answer:

Answer A

Step-by-step explanation:

Answer A indicates some minimal value for the set of points to the left (negative side of the distribution) which are associated with negative skewness since the mean is at 22 also with larger deviation to the left shown in the median of the points to the left further to the negative side of the plot.

Answers B and C show symmetric distributions (no skewness at all).

Answer D would represent skewness to the right (positively skewed)

So the correct answer is answer A.

8 0
3 years ago
If Susan earn 1,800 per month and her rent is 504 per month, what percent of her income is spent on rent?
svetoff [14.1K]
504÷1800=0.28
28% of her income goes to her rent
4 0
3 years ago
Express each percent as a fraction or mixed number in the simplest form. 2.5%
Blizzard [7]

Answer:

The answer is 2 1/2 or in mixed form 5/2

Hope I helped :)

6 0
3 years ago
Read 2 more answers
Instructions:Type the correct answer in the box.
alexira [117]
180 miles? seems like the question is incomplete
5 0
3 years ago
Read 2 more answers
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