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anzhelika [568]
3 years ago
5

What is 2+1 please help me

Mathematics
2 answers:
ANTONII [103]3 years ago
7 0

Answer:

ummmm i think its 3 bb

Step-by-step explanation: if i think really hard i think 2 + 1 is 3

erica [24]3 years ago
4 0
2+1=3

I hope this helped! :)
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Cos(x/3)cos(x/3)=1/2(1+cos(2x/3))
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This follows from the half-angle identity for cosine.

\cos^2\theta=\dfrac{1+\cos2\theta}2
6 0
3 years ago
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Can you please help me with this math problem please.
adoni [48]
<h2>Answer: </h2><h2>Mohammed's net pay each week is $298.90 (61%).</h2>

Step-by-step explanation:

  1.            15% + 8% + 9% + 7% = 39%
  2.                      39% - 100% = 61%
  3.                  $490 x 61% = $298.90

             

<h2>                </h2>

<h2>                 <u><em>The answer is 61%.</em></u></h2><h3><u><em>                  The exact cash amount is $298.90                     </em></u></h3>
4 0
2 years ago
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The length of a rectangle is three times its width. If the area of the rectangle is 243 m squared, find it’s perimeter
vlabodo [156]

Answer: 72

Step-by-step explanation:

L= 3W

area of a rectangle  A= LxW

replace L with 3 W

A=3W*W= 3w^2

243=3W^2

243/3=W^2

81=w^2, and W=9

L=3*9=27

P= (L+W)=2(27+9)=72

3 0
2 years ago
Rewrite as a simplified fraction 2.16 &lt;-- repeating =?
slava [35]
x=2.161616...=2.\overline{16}=2.(16)\\\\x=2.161616....\ \ \ \ |multiply\ both\ sides\ by\ 100\\100x=216.161616...\\\\100x-x=216.161616...-2.161616...\\99x=214\ \ \ \ |divide\ both\ sides\ by\ 99\\\\x=\frac{214}{99}\\\\x=\frac{198+16}{99}\\\\x=\frac{198}{99}+\frac{16}{99}\\\\\boxed{x=2\frac{16}{99}}
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3 years ago
What two numbers add to equal -10 but multiply to equal 16
juin [17]

Answer:

-8 and -2

Step-by-step explanation:

-8 + -2 = -10

-8(-2)= 16 (negative times negative = positive)

3 0
3 years ago
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