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Damm [24]
3 years ago
5

Which formula should be used to find the circumference of a circle

Mathematics
1 answer:
dybincka [34]3 years ago
3 0

Answer:

c = 2πr

Step-by-step explanation:

hope this helpssss

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One day Sally earned £60<br> She worked for 8 hours<br><br> Work out Sally’s hourly rate of pay?
Scrat [10]

Answer:

£7.50

Step-by-step explanation:

Hope this helps! If I could have brainliest I'm trying to rank up :)

5 0
3 years ago
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Uh help it has to e same answers for all liek yk?
Finger [1]

Answer:

x = 8/3

Step-by-step explanation:

6x + 4 = 3x + 12

3x + 4 = 12

3x = 8

x = 8/3

5 0
3 years ago
3 csc^2(2x) + 2 cosec 2x = 1-cot^2(2x)
asambeis [7]

I am assuming you want to solve for x:-

Now cosec^2 2x = 1 - cot^2 2x  so the equation becomes

3 cosec^2(2x) + 2 cosec 2x =  cosec^2 2x

2 cosec^2 2x + 2 cosec 2x = 0

2 cosec 2x (  cosec 2x + 1) = 0

so 2 cosec 2x = 0  or    cosec 2x = -1

cosec 2x = 0  or cosec 2x = -1

cosec 2x = 0  is indeterminate so we ignore the first one

cosec 2x = -1  can be written as 1 / sin 2x = -1

so sin 2x = -1  

giving 2x = 270 degrees

Therefore  x = 135 degrees  answer


3 0
3 years ago
For the simple harmonic motion equation d=2 sin (pi/3 t), what is the maximum displacement from the equilibrium position?. . . .
Pie
<span>Yes, it is.

Here's something to think about:
The function sin(x) is never bigger than 1, no matter what number you choose to plug into it. therefore the maximum value of the equation d= 2sin(x) is 2.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.


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5 0
3 years ago
A laboratory is testing a product by heating or cooling it at different rates. The table shows the results of four tests. Drag a
katrin [286]

Answer:Cell content

Started at 20° and dropped 4° each minute                      -4

Cell content

Started at −20° and rose 1° each minute                              1

Cell content

Started at 20° and dropped 1° each minute                       -1

Cell content

Started at −20° and rose 4° each minute                             1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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