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Marina CMI [18]
3 years ago
9

Factor the following n^2 + 6n

Mathematics
2 answers:
Veronika [31]3 years ago
4 0

Answer:

n(n + 6)

Step-by-step explanation:

n² + 6n = n(n + 6)

masha68 [24]3 years ago
3 0

Answer:8n?

Step-by-step explanation:

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The equation x ^ 2 - 2x + y ^ 2 - 4y = 20 defines a circle in the xy-coordinate plane What is the radius of the circle?
Helga [31]

Answer:

I'll set up the problem and you can do the calculation

Step-by-step explanation:

we need to complete the squares to get the equation in the general form:

{(x - h)}^{2}  +  {(y - k) }^{2}  =  {r}^{2}

where h = the x coordinate of the center

k = the y coordinate of the center

r = the radius

so looking at

{x}^{2}  - 2x

we can see that if use -1 as the constant we have

{(x - 1)}^{2}  =  {x}^{2}  - 2x   + 1

doing the same for y

{y}^{2}  - 4y

we can use -2 as the constant (basically you that the s

quare of the y coefficient )

{(y - 2)}^{2}  =  {y}^{2}  - 4y   + 4

so now we have to add or subtract the constant on the RHS to see what the square of the radius is according to the general form of the equation at the top

20 +1+4=25

Take the square root and you have the radius

4 0
2 years ago
Compare -1/6 to -2/3 <,>,=
irga5000 [103]
The answer should be less than
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3 years ago
The number 31 is increased to 44. What is the percentage by which the number was increased, to the nearest tenth of a percent?
Sophie [7]

Answer:

41.9 %

Step-by-step explanation:

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3 years ago
(Subtract<br> ) f(x) = x + 1<br> g(x) = x2 + 1
kramer

Answer:

The first question:

x = -1

Step-by-step explanation:

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  -x - 1  =   -1 • (x + 1)

Equation at the end of step  1  :

Step  2  :

Solving a Single Variable Equation :

2.1      Solve  :    -x-1 = 0

Add  1  to both sides of the equation :

                     -x = 1

Multiply both sides of the equation by (-1) :  x = -1

One solution was found :

                  x = -1

Processing ends successfully

plz mark me as brainliest :)

7 0
2 years ago
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