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Paul [167]
3 years ago
13

Please help me I

id="TexFormula1" title=" {x}^{2} - {y}^{2} + 4y - 4" alt=" {x}^{2} - {y}^{2} + 4y - 4" align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
maksim [4K]3 years ago
6 0

Answer:

hope it's was helpful to you

Ivenika [448]3 years ago
4 0

Answer:

{x}^{2}  -  {y}^{2}  + 4y - 4 \\  \\  {x}^{2}  - ( {y}^{2} .2.y.y +  {2}^{2} ) \\  \\  {x}^{2}  - (y - 2) {}^{2}  \\  \\ (x + y - 2)(x - y + 2)

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Find the solution to the system by the substitution method. Check your answer.
polet [3.4K]

Answer:

#1 x=44+7y

#2

x =10  +    \frac{y}{5}

Step-by-step explanation:

used math.way hope this helps

6 0
3 years ago
I don't know what I'm doing wrong here, can anyone help?
Novosadov [1.4K]

if you look at the part where the first part connects with the second part:

y = 5 if x < - 2

y = -2x + 1 if  -2 ≤ x < 1

we don't have a discontinuity there, so there shouldn't be a dot.

<h3></h3><h3>What is wrong with the graph?</h3>

When we graph over intervals like (a, b) or [a, b] or something like that, we use dots to define the end of the intervals, and to denote that the function ends abruptly or we have a jump.

In this case, you can see that between the end and the second part and the beginning of the third part there is a jump, so the use of dots is correct there, but if you look at the part where the first part connects with the second part:

y = 5 if x < - 2

y = -2x + 1 if  -2 ≤ x < 1

we don't have a discontinuity there, so there shouldn't be a dot.

That is the only error with the graph.

If you want to learn more about piecewise functions:

brainly.com/question/3628123

#SPJ1

8 0
2 years ago
A triangle has an area of 36 cm². The base and height are scaled by a factor of 5.
ahrayia [7]
Triangle Area = .5 * (base * height)
36 = (base * height) / 2
So let's say base = 9 height 8
If base and height are scaled by a factor if 5 than
base = 45 height 40 and
area = .5 * (45 * 40)
area = 900

Basically, the area increases by a factor of 25.
The base increases by 5 and the height increases by 5 so the area increases by 5*5 = 25

4 0
3 years ago
Find the inverse of the equation
zimovet [89]
The inverse of f(x)=  \frac{6x+5}{3x-1} is f(-1)= \frac{-x-5}{3(2-x)} I hope I helped
3 0
4 years ago
If 1/3 of a set of numbers is 8 how many numbers are in the total set ?
Eduardwww [97]

Answer:

24

Step-by-step explanation:

1/3 = 8

3/3 = 8*3

7 0
3 years ago
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