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wel
3 years ago
6

WILL GIVE BRAINLIEST

Mathematics
1 answer:
Nonamiya [84]3 years ago
4 0

9514 1404 393

Answer:

  a)  M(2,2), B(4, -2), D(0, 6)

  b)  40

Step-by-step explanation:

a) The midpoint of AC is the average of the endpoint coordinates.

  M = (A +C)/2

  M = ((-2, 0) +(6, 4))/2 = (4, 4)/2

  M = (2, 2)

There are several ways to find points B and D. One of them is to rotate points A and C 90° about M. The 90° CCW rotation transformation about the origin is ...

  (x, y) ⇒ (-y, x)

About the point (2, 2), the transformation would be ...

  (x, y) ⇒ (-(y -2)+2, (x -2)+2) = (4 -y, x)

Rotating point A 90° to get point B, we have ...

  B = (4 -0, -2)

  B = (4, -2)

And rotating C to get point D, we have ...

  D = (4 -4, 6)

  D = (0, 6)

__

b) The area of the square is half the square of the diagonal. The square of the diagonal can be found using the distance formula ...

  d² = AC² = (6-(-2))² +(4 -0)² = 64 +16 = 80

Then the area is ...

  area = AC²/2 = 80/2

  area = 40 . . . . square units

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(15pts)
Lilit [14]

I can't see pictures, but I'll try.

To find area, you multiply the two dimensions. To find a dimension with the area and a dimension, you divide the area by the dimension provided.

(2x+10)(2x+15)

x=2

2(2)+10x2(2)+15

4+10x4+15

14x19

266

---

hope it helps

4 0
3 years ago
Which set of points does not represent a function
Maurinko [17]
If it is a bunch of dots on a graph, then the answer will be the one that has two sets of dots on the same vertical line (the y axis). so if there are two dots right above and below eachother, that graph is the correct answer. 
8 0
3 years ago
Which of the following angles is NOT congruent to 6?<br> 3<br> 2<br> 7<br> 1
TiliK225 [7]

Answer:

1

Step-by-step explanation:

We can see that 7 is equal to 6, as opposite angles are the same.

We can also see that 2 is also 6, as corresponding angles are equivalent.

Therefore, 3 is also congruent to 6, as it is equal to 2.

Hope that this helps!

8 0
3 years ago
NEED HELP QUICK PLEASE !!
xxMikexx [17]

Answer:

you have already choose correct  one's

BC=DC

Step-by-step explanation:

6 0
3 years ago
Solve by graphing. Y = 1/3x - 3, Y= -x + 1<br><br> How do you solve this?
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Step-by-step explanation:

Y=1/3-3/1

-x+1= 1/3-3/1

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= -2.

3 0
3 years ago
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