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Marta_Voda [28]
4 years ago
7

Determine the coordinates of the vertices of the triangle to compute the area of the triangle using the distance formula (round

to the nearest integer).
FIRST GRAPH
A) 20 units^2
B) 30 units^2
C) 40 units^2
D) 50 units^2
Mathematics
1 answer:
lesantik [10]4 years ago
3 0
Since you haven't provided the data to answer the problem, I have my notes here that might guide you solve the problem on your own:

Now, consider a triangle that’s graphed in the coordinate plane. You can always use the distance formula, find the lengths of the three sides, and then apply Heron’s formula. But there’s an even better choice, based on the determinant of a matrix.

Here’s a formula to use, based on the counterclockwise entry of the coordinates of the vertices of the triangle
 
(x1<span>, </span>y1), (x2<span>, </span>y2), (x3<span>, </span>y3<span>) or (2, 1), (8, 9), (1, 8): </span>A<span> = </span>x1y2<span> + </span>x2y3<span> + </span>x3y1<span> – </span>x1y3<span> – </span>x2y1<span> – </span>x3y2<span>.</span>
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A square piece of fabric is the side length of 3.2 cm find the area of the piece of the fabric
Sauron [17]

The area of square fabric piece is 10.24 cm^2

Step-by-step explanation:

Square is a four-sided shape where all sides are equal. The area of square is calculated by using its side.

Given

Side length of fabric piece = s = 3.2 cm

The area of square is given by:

Area = A = s^2

Putting s= 3.2

Area = (3.2)^2\\= 10.24\ cm^2

Hence,

The area of square fabric piece is 10.24 cm^2

Keywords: Square, area

Learn more about area of square at:

  • brainly.com/question/8224301
  • brainly.com/question/8180193

#LearnwithBrainly

7 0
3 years ago
Solve the linear equation.<br> 7x+10= 1/3(12x-3)+14x
pychu [463]
7x+10=1/3×(12x-3)+14x

7x+10=1/3×3(4x-1)+14x

7x+10=(4x-1)+14x

7x+10=4x-1+14x

7x+10=18x-1

7x-18x=-1-10

-11x=-11

x=1
5 0
4 years ago
Read 2 more answers
A certain number was multiplied by 3. then, this product was divided by 3. Finally, 5 was subtracted from this quotient, resulti
natulia [17]

Answer:

2

Step-by-step explanation:

2 x 3= 6

6 divided by 3 = 2

2 - 5 = -3 because it takes the sign of the larger number

3 0
2 years ago
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(2a/a+3b) + 10 = b<br><br> Rearrange and make “a” as subject
Helga [31]

Answer:

a = -2b - 10

Step-by-step explanation:

a + 3b + 10 = b

a + 10 = -2b

a = -2b - 10

8 0
4 years ago
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Subtract -4a^2-2ab+9b^2 from 7a^2-3ab+5b^2
tresset_1 [31]

{7a}^{2}  - 3ab +  {5b}^{2}  - ( -  {4a}^{2}  - 2ab +  {9b}^{2}) \\  =  {7a}^{2}  - 3ab +  {5b}^{2}   + {4a}^{2}   + 2ab + -  {9b}^{2}) \\ = {7a}^{2}   +  {4a}^{2}  -  3ab   + 2ab +   {5b}^{2}  -  {9b}^{2}) \\ =  {11a}^{2}  - ab -  {4b}^{2}

<u>Answer</u><u>:</u>

<u>{11a}^{2}  - ab -  {4b}^{2}</u>

Hope you could understand.

If you have any query, feel free to ask

7 0
3 years ago
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