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iragen [17]
3 years ago
7

5-2x=15

="absmiddle" class="latex-formula">
Mathematics
1 answer:
padilas [110]3 years ago
6 0
<span>5-2x=15

</span>5-2x=15 \\  \\ -2x= 15-5  \\  \\ -2x= 10 \\  \\ x=  \dfrac{10}{-2} \to  \boxed{x= -5}<span>
</span>
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Is 3.14 a Rational, Whole Number, Integer, or Irrational number?​
IrinaVladis [17]

Answer:

the answer is a rational number

7 0
3 years ago
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How do I solve for x? <br>10x+6=8-2(x+6)
Neporo4naja [7]

1. 10x+6=8-2(x+6)

2. 10x+6=6(x+6)

(distribute the 6)

3. 10x+6=6x+36

(Move the 6x to the other side by subtracting)

4. 4x+6=36

(Move the 6 to the other side by subtracting)

5. 4x=30

(divide)

x=7.5


Hope this helped! :)

6 0
3 years ago
Show the expanded notation for 3c + 6c.
Kruka [31]

Answer:

C ( 3 + 6)

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8 0
3 years ago
What is the axis of symmetry of the graph of f(x)=−2x²+8x−2?
FromTheMoon [43]

For the given parabola, the axis of symmetry is x = 2.

<h3>How to get the axis of symmetry?</h3>

For any given parabola, we define the axis of symmetry as a line that divides the parabola in two equal halves.

For a regular parabola, we define the axis of symmetry as:

x = h

Where h is the x-component of the vertex.

Remember that for the general parabola:

y = a*x^2 + b*x + c

The x-value of the vertex is:

h = -b/(2a)

Then for the function:

f(x)=−2x²+8x−2

We get:

h = -8/(2*-2) = 2

Then the axis of symmetry is x = 2.

If you want to learn more about parabolas, you can read:

brainly.com/question/1480401

7 0
2 years ago
A regular octagon with sides of length 7 and an apothem of length 10.49 has an area of how many square units
Ray Of Light [21]

Answer:

The area of the regular octagon is 293.72\ units^{2}

Step-by-step explanation:

we know that

The area of the regular polygon is equal to

A=\frac{1}{2}Pa

where

P is the perimeter of the regular polygon

a is the apothem

<em>Find the perimeter P</em>

P=8(7)=56\ units

Find the area

A=\frac{1}{2}(56)(10.49)=293.72\ units^{2}

6 0
3 years ago
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