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gavmur [86]
4 years ago
13

What is the perimeter of abc with vertices A(-2,9) B(7,-3) and C(-2,-3) in coordinate plane

Mathematics
2 answers:
SCORPION-xisa [38]4 years ago
6 0
For the answer to the question above,
A - C = ( -2, 9) - (- 2 -3) 

<span>= ( 0, 12) </span>

<span>AC = 12 </span>

<span>B - C = (7 - 3) - ( - 2 -3) </span>

<span>= (9, 0) </span>

<span>BC = 9 </span>

<span>ABC is a right -angled triangle with AC as the hypotenuse </span>

<span>AC = sqrt( 9^2 + 12^2) </span>

<span>= sqrt(81 + 144) </span>

<span>= srqt(225) </span>

<span>= 15 </span>

<span>Perimeter = 12 + 9 + 15 </span>

<span>= 36 units </span>

<span> So the answer is 36 units
</span>I hope my answer helped you.
IRINA_888 [86]4 years ago
4 0

Answer:

36units

Step-by-step explanation:

yeah thatss right


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Oliga [24]

Answer:

30

Step-by-step explanation:

if im reading the qestuion right

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hoped this helped!

3 0
3 years ago
"Data from the World Health Organization in 2013 were used to predict the life expectancy of men in a country from the life expe
marshall27 [118]

Answer:

The predicted life expectancy of men in a country in which the life expectancy of women is 70 years is 65.33 years.

Step-by-step explanation:

The least square regression line is used to predict the value of the dependent variable from an independent variable.

The general form of a least square regression line is:

\hat y=\alpha +\beta x

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>α</em> = intercept

<em>β</em> = slope

The regression line to predict the life expectancy of men in a country from the life expectancy of women in that country is:

\hat y=3.73 +0.88 x

Compute the life expectancy of men in a country in which the life expectancy of women is 70 years as follows:

\hat y=3.73 +0.88 x

  =3.73 +(0.88\times 70)\\=3.73+61.6\\=65.33

Thus, the predicted life expectancy of men in a country in which the life expectancy of women is 70 years is 65.33 years.

6 0
4 years ago
517 37/50 + 312 3/100
fgiga [73]

Answer: 829 3/4 or 829 75/100

Step-by-step explanation:

6 0
3 years ago
Please help answer this I need help badly
Viefleur [7K]
It should be 2 ..............
4 0
3 years ago
Read 2 more answers
Using the Segment Addition Postulate, find the value of m.
Naya [18.7K]

Answer:

36

Step-by-step explanation:

AB + BC = AC

4m - 15 + 5m - 6 = 15

m - 21 = 15

m = 36

4 0
3 years ago
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