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tensa zangetsu [6.8K]
2 years ago
5

Find the perimeter????????

Mathematics
1 answer:
djverab [1.8K]2 years ago
4 0

Perimeter of triangle is calculated by adding up the three sides of the triangle.

In the given triangle ABC, vertices of triangle are given as A(-2,2) B(0,4) C(1,-2)

We calculate the length of side AB by the distance formula which states as :

For the points (x_{1},y_{1}) and (x_{2},y_{2})

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

AB = \sqrt{(0+2)^{2} + (4-2)^{2}} = 2\sqrt{2}

BC=\sqrt{(1-0)^{2} + (-2-4)^{2}} = \sqrt{37}

AC=\sqrt{(1+2)^{2} + (-2-2)^{2}} = 5

Perimeter = AB+BC+AC = =2\sqrt{2} + 5+ \sqrt{37}= 13.911

So, Perimeter = 14 (Rounded to the nearest tenth)

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A firm has the marginal-demand function where D(x)=-1400x÷√25-x² is the number of units sold at x dollars per unit. Find the dem
borishaifa [10]

The equation of the demand function is D(x) = 1400√(25-x²) + 11400

<h3>How to determine the demand function?</h3>

From the question, we have the following parameters that can be used in our computation:

Marginal demand function, D'(x) = -1400x÷√25-x²

Also, we have

D = 17000, when the value of x = 3

To start with, we need to integrate the marginal demand function, D'(x)

So, we have the following representation

D(x) = 1400√(25-x²) + C

Recall that

D = 17000 at x = 3

So, we have

17000 = 1400√(25-3²) + C

Evaluate

17000 = 5600 + C

Solve for C

C = 17000 - 5600

So, we have

C = 11400

Substitute C = 11400 in D(x) = 1400√(25-x²) + C

D(x) = 1400√(25-x²) + 11400

Hence, the function is D(x) = 1400√(25-x²) + 11400

Read more about demand function at

brainly.com/question/24384825

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1 year ago
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Answer:

The equation for the line of reflection will be x = y.

Step-by-step explanation:

On a coordinate plane, triangle Δ ABC has points (6, 3.7), (5.4, 2), (1, 3). Triangle Δ A'B'C' has points (3.7, 6), (2, 5.4), (3, 1).

And we have to find the equation of the line of reflection of the points.

Now, it is clear from the coordinates of vertices of Δ ABC and Δ A'B'C' that after reflection the x and y-values of the respective coordinates interchange and there is no change in signs.

Therefore, the equation for the line of reflection will be x = y. (Answer)

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arsen [322]

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Step-by-step explanation:

7.36

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After 9 new members joined the ski club, there were 38 members. How many members had been in the club previously?
dezoksy [38]

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Previously, there were 29 members in the ski club

Step-by-step explanation:

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