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AleksAgata [21]
3 years ago
11

What system does it represent and what is the solution of this system

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

We can see that the lines intersect at (-5,3) on the graph, so that eliminates choices B and D. Both A and C say that the first line is y=x+8, which is true. A says that the second line is y+x=-2, and after isolating y, we get y=-x+2, which seems correct. Do the same for C, and you will find that it says the other equation is y=x-2, which is not true because it must have a negative slope. So your answer will be choice A.

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(09.01 HC)<br> Prove that the two circles shown below are similar. (10 points)
lisov135 [29]

Answer:

Proved

Step-by-step explanation:

Given

<u>Circle C</u>

R = 4 --- radius

(x,y) = (-3,1) --- center

<u>Circle E</u>

r= 3

(x,y) = (4,9) --- center

Required

Prove their similarity

Translate circle C 8 units up;

The rule is:

(x,y) \to (x,y+8)

So, we have:

(-3,1) \to (-3,1+8)

(-3,1) \to (-3,9)

Translate circle C' 7 units right;

The rule is:

(x,y) \to (x+7,y)

So, we have:

(x,y) \to (-3+7,9)

(x,y) \to (4,9)

<em>At this point, both circles now have the same center at (4,9)</em>

The next step is to dilate circle E by 4/3

This will only affect radius and not the center of E

The rule is:

r' = r * \frac{4}{3}

r' = 3 * \frac{4}{3}

r' = 4

So, we have:

R = r' = 4 -- equal radii

(x,y) \to (4,9) --- equal center

<em>Proved</em>

7 0
3 years ago
Given the following equation, at which point will the graphs undersecretary
swat32

9514 1404 393

Answer:

  (2, 11)

Step-by-step explanation:

The graph shows you the point of intersection is (x, y) = (2, 11).

6 0
3 years ago
Solve the system of linear equations by elimination x + 2y = 13 --x+y=5​
katen-ka-za [31]

Answer:

{x,y} = {1,6}  Have a great day

5 0
3 years ago
Read 2 more answers
Which of the following inequalities matches the graph?
brilliants [131]
Hi there! The answer is D.

We're looking at the graph y = - 1. The area above this line is the shaded area, so the solution must be greater than (or equal to) -1. Therefore we're looking at
y \geqslant  - 1
4 0
4 years ago
Read 2 more answers
A system of linear equations is graphed.
Alika [10]
The best answer is A. because the X is -4 and y is approximately 2.5

I hope I've helped!
8 0
3 years ago
Read 2 more answers
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