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alexandr402 [8]
3 years ago
5

Find the solution set. (x+7)(x+7)=0

Mathematics
2 answers:
levacccp [35]3 years ago
7 0

For this case we must find the solution of the following expression:

(x + 7) (x + 7) = 0

If we isolate a term and we equate to zero, we have:

x + 7 = 0

Subtracting 7 on both sides of the equation we have:

x + 7-7 = 0-7\\x = -7

Thus, the solution of the expression is given by:

x = -7

ANswer:

x = -7

Serhud [2]3 years ago
4 0

Answer:

x = -7, multiplicity 2.

Writing it as a set it is {-7, -7}.

Step-by-step explanation:

(x + 7)(x + 7 )= 0

When 2 expressions are multiplied and the result is zero either of them can be zero, so

x + 7 = 0

x = -7.

In this case, since the 2 factors are the same, there are duplicate roots.

We write  this as  x = -7, multiplicity 2.

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Zielflug [23.3K]

Answer:

The coordinates of B' are (-3, 5).  

Step-by-step explanation:

For every 90 degrees rotated, the coordinate numbers switch and one is multiplied by -1, when clockwise it's the 2nd one, and when counterclockwise, it's the 1st.

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3 years ago
The size of the tank a fish collector needs depends on how many fish he has. Which in the independent variable
Semenov [28]

Answer:

Step-by-step explanation:

"<u><em>The size of the tank</em></u> a fish collector needs <u><em>depends</em></u> on <em>how many fish he has</em>."

Dependent variable is the size of the tank.

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3 years ago
Can someone please help me with these questions?
mr Goodwill [35]

The answer for the first one would be 6.4.

And the second one is C. 3.16

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3 years ago
Find the x- and y intercepts for the linear equation
Vanyuwa [196]

4. 3x + 2y = 6

x-intercept = 2 ,  y - intercept = 3

5. 4x – 9y = 36

x-intercept = 9, y - intercept = -4

6. x + y = -3

x-intercept = -3, y - intercept = -3

8. x - 3y = 12

x-intercept = 12, y - intercept = -4

Step-by-step explanation:

To find the x-intercept we put y=0 in the equation and to find the y-intercept we put x = 0 in the equation

<u>4. 3x + 2y = 6</u>

Putting y = 0

3x + 2y = 6\\3x +2(0) = 6\\3x = 6\\\frac{3x}{3} = \frac{6}{3}\\x= 2

Putting x=0

3x + 2y = 6\\3(0) + 2y = 6\\2y = 6\\\frac{2y}{2} = \frac{6}{2}\\y= 3

<u>5. 4x – 9y = 36</u>

Putting y = 0

4x -9y = 36\\4x - 9(0) = 36\\4x = 36\\\frac{4x}{4} = \frac{36}{4}\\x = 9

Putting x=0

4(0) -9y = 36\\-9y=36\\\frac{-9x}{-9} = \frac{36}{-9}\\x =-4

<u>6. x + y = -3</u>

Putting y = 0

x+y=-3\\x+0 = -3\\x = -3

Putting x=0

x + y = -3\\0+y=-3\\y=-3

<u>8. X - 3y = 12</u>

Putting y=0

x - 3(0) = 12\\x -0 = 12\\x = 12

Putting x = 0

0-3y = 12\\-3y = 12\\\frac{-3y}{-3} =\frac{12}{-3}\\y=-4

Keywords: Linear equation

Learn more about linear equations at:

  • brainly.com/question/2150928
  • brainly.com/question/2154850

#LearnwithBrainly

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3 years ago
Find the perimeter of the rectangle,<br> 4.3 yd<br> 2.6 yd<br> The perimeter of the rectangle is
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Answer:

P = 13.8 yd

Step-by-step explanation:

The perimeter of a rectangle is given by

P = 2(l+w)

  =2(4.3+2.6)

   = 2(6.9)

    =13.8

P = 13.8 yd

8 0
3 years ago
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