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BARSIC [14]
3 years ago
15

What number has two more tens then 11

Mathematics
1 answer:
777dan777 [17]3 years ago
5 0
The answer is 31. 10+10+20+1=31
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The temperature overnight in Sitka, Alaska was 12 below zero. How should this be written?
Bingel [31]

Answer:

-12°

Step-by-step explanation:

it is negative because it it below zero.

6 0
3 years ago
Find the measure of an exterior angle of each regular polygon: 100-gon.
Gelneren [198K]
If this is a 100-gon, then not only does it have 100 sides, it also has 100 central angles.  Each one measures 360/100 = 3.6.  This is the vertex angle for each of those 100 triangles.  180 - 3.6 = 176.4, which has to be split equally between the 2 base angles.  This puts each of those at 88.2.  If you are looking for the exterior angle to each of those, it's the supplement of them. 180-88.2 = 91.8
4 0
3 years ago
Factor the expression over the complex numbers.<br><br><img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B18" id="TexFormula1
AleksAgata [21]

Here we are given the expression:

x^{2}+18

Now let us equate it to zero to find x first,

x^{2}+18=0

Now subtracting 18 from the other side,

x^{2}=-18

taking square root on both sides,

So we will get two values of x as ,

x=3\sqrt{-2}

x=-3\sqrt{-2}

Now we can write square root -1 as i,

So our factors become,

x=3i\sqrt{2}

x=-3i\sqrt{2}

Answer:

The final factored form becomes,

(x+3i\sqrt{2})(x-3i\sqrt{2})



7 0
3 years ago
Read 2 more answers
What is the distance between (12.-7) and (-3, -7)? ​
vitfil [10]

Step-by-step explanation:

distance between (12.-7) and (-3, -7)

\sqrt{ {(12  +  3)}^{2} +  {0}^{2}  }

=12+3

=15 units

6 0
3 years ago
What is the mean absolute?
alex41 [277]

Answer:

mean absolute deviation is <em>8</em>

Step-by-step explanation:

to find mean absolute deviation, you subtract your mean from each of your values, and make them all positive, (even if u get a negative..)

then you add all your new answers up and divide by how many numbers there are (basically just find mean of your new set of data...)

<em>Hope this helps you in the future!!</em>

7 0
3 years ago
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