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Anna [14]
3 years ago
8

What is the value of X?

Mathematics
2 answers:
horrorfan [7]3 years ago
4 0

You have to find out the solution first.

amid [387]3 years ago
4 0

2(x + 10) = 3x - 30

2x + 20 = 3x - 30

20 + 30 = 3x - 2x

50 = x

Answer is  50

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Type the correct answer in each box.
Vitek1552 [10]

Answer:

The coordinates of the point that is a reflection of Y(-4, -2) across the x-axis are ( -4,2).

The coordinates of the point that is a reflection of Y across the y-axis are ( 4,-2).

Step-by-step explanation:

<em>Reflection across x-axis</em>

<em>The rule used for Reflection across x-axis is that y-coordinate becomes negated while x coordinate remains same.</em>

So,

The coordinates of the point that is a reflection of Y(-4, -2) across the x-axis are ( -4,2).

Because according to definition, x-coordinate remains same, while y-coordinate is negated. So x-coordinate = -4, y-coordinate = 2

<em>Reflection across y-axis</em>

<em>The rule used for Reflection across y-axis is that x-coordinate becomes negated while y coordinate remains same.</em>

So,

The coordinates of the point that is a reflection of Y across the y-axis are ( 4,-2).

Because according to definition, y-coordinate remains same, while x-coordinate is negated. So x-coordinate = 4, y-coordinate = -2

7 0
3 years ago
Add the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of x.
CaHeK987 [17]

Answer:

-x^5+3x^4+16x^3+7x^2-3x+6

Step-by-step explanation:

Given polynomials are:

x^5-4x^4+7x^3+8, 9x^3+7x^2-10 and -2x^5+7x^4-3x+8

Now we need to add the given polynomials, then place the answer in the proper location on the grid. Also we need to write answer in descending powers of x.

So let's add them by combining like terms:

x^5-4x^4+7x^3+8+9x^3+7x^2-10-2x^5+7x^4-3x+8

-x^5+3x^4+16x^3+7x^2-3x+6

Hence final answer in descending order is -x^5+3x^4+16x^3+7x^2-3x+6

6 0
3 years ago
If 48 is 10% then what is 100%
Alecsey [184]
480 is 100%

48 = 10%

480 = 100%
4 0
3 years ago
What is the value of x in the equation 3(4x+6) =21<br> A) 1/4<br> B) 13/4<br> C) 4/13 <br> D) 12/7
nata0808 [166]
3 (4x + 6) = 21
4x + 6 = 21/3
4x + 6 = 7
4x = 7 - 6
4x = 1
x = 1/4

8 0
3 years ago
The area of a square rug is 169ft^2. How long is each side of the rug?
jek_recluse [69]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{13 \: ft}}}}}

Step-by-step explanation:

\star{ \sf{ \: Area \: of \: a \: square \: rug \: ( \: A \: ) \:  =  \: 169 \:  {ft}^{2} }}

\sf{ \underline{Finding \: the \: length \: of \: a \: square \: ( \: l \: )}}

\boxed{ \sf{Area \: of \: a \: square \:  =  \:  {l}^{2} }}

\hookrightarrow{ \sf{169 =  {l}^{2} }}

\hookrightarrow{ \sf{ {l}^{2}  = 169}}

\hookrightarrow{ \sf{ \sqrt{ {(l)}^{2} }  =  \sqrt{169} }}

\hookrightarrow{ \text{length \:  =  \: 13 \: ft}}

\text{Hope \: I \: helped!}

\text{Best \: wishes !!}

~\text{TheAnimeGirl}

6 0
3 years ago
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