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Nady [450]
3 years ago
12

- 10x - 11 = -12x + 21​

Mathematics
2 answers:
bogdanovich [222]3 years ago
6 0
-10x-11=-12x+21
Move variable to the left side and change its sign
Move constant to the right side and change its sign
-10x+12x=21+11
2x=21+11
2x=32
Divide both sides by 2
X=16
Helen [10]3 years ago
4 0
-10x=-12x + 21 + 11
-10x= -12 + 32
-10x + 12x = 32
2x = 32
X = 32/2
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Write and solve an equation to find the numben.
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let number=b

twice a number=2b

Condition:

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X &gt; 2 and x &lt; 7<br><br>I don't understand
valentinak56 [21]
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3 0
3 years ago
Plz do this question if you did I will very appreciated you. plz.​
Nastasia [14]

The area formula of a circle is r^{2} × π.

With that being said, we can solve both problems!

Starting with part A:

-The radius we know is 21cm. From there, we can substitute in our formula with the new value.

21^{2} x π

From there, we can square our radius:

(21 x 21) x π

(441) x π

And finally, we can multiply by pi to get our answer.

(441) x π

1385.44236023

Which rounded to the nearest tenth is 1385.4. Therefore, the area of the porthole is 1385.4 centimetres.

The second part can be followed with the same process, hopefully you understand the concept enough to where you're comfortable solving problems like this on your own. Feel free to reach out if you have any further trouble!

<em>Hope this helped! :)</em>

5 0
3 years ago
What is the degree of the power function represented in the table
DiKsa [7]

Answer:

2

Step-by-step explanation:

We need to plot the points in a graph and see the general shape of the curve.

<em>Attached is the graph.</em>

<em />

This Upside Down "U" shaped curve is that of a parabola, which has the general form

ax^2 + bx + c

Thus, we see, the function is a 2nd degree function, highest power is 2.

<em />

7 0
3 years ago
Read 2 more answers
Please please please help me with this answer
Sergio039 [100]

Hello,

85 / 12 ≈ 8

Bye ;)

3 0
3 years ago
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