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Oksanka [162]
3 years ago
6

What is PEMDAS and GEMS ? Pls Help ASAP :) WILL GIVE BRAINLIEST IF RIGHT !!

Mathematics
2 answers:
iogann1982 [59]3 years ago
7 0

PEMDAS parenthesis, exponents,multiplication,division,addition,subtraction.

GEMS groping,exponents,multiplication/division, addition/subtraction


jolli1 [7]3 years ago
3 0

prantheseis  exponets  multipication division addition and subtraction and gems is groups exponents multipication and subtraction hope this helps

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Prove identity trigonometric equation
irina [24]

Explanation:

The given equation is False, so cannot be proven to be true.

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Perhaps you want to prove ...

  2\tan{x}=\dfrac{\cos{x}}{\csc{(x)}-1}+\dfrac{\cos{x}}{\csc{(x)}+1}

This is one way to show it:

  2\tan{x}=\cos{(x)}\dfrac{(\csc{(x)}+1)+(\csc{(x)}-1)}{(\csc{(x)}-1)(\csc{(x)}+1)}\\\\=\cos{(x)}\dfrac{2\csc{(x)}}{\csc{(x)}^2-1}=2\cos{(x)}\dfrac{\csc{x}}{\cot{(x)}^2}=2\dfrac{\cos{(x)}\sin{(x)}^2}{\cos{(x)}^2\sin{(x)}}\\\\=2\dfrac{\sin{x}}{\cos{x}}\\\\2\tan{x}=2\tan{x}\qquad\text{QED}

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We have used the identities ...

  csc = 1/sin

  cot = cos/sin

  csc^2 -1 = cot^2

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4 0
3 years ago
If you buy tomato sauce for $.90 a quart how much does it cost for 5 pints
Dima020 [189]
<h2>Hello!</h2>

The answer is: the price of 5 pints of tomato sauce is $2.25.

<h2>Why?</h2>

To calculate how much does it cost 5 pints, we need to perform a unit conversion with the following  unit relationship:

0.5Quart=Pints

Now, calculating how much is a pint:

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Then, calculating how much are 5 pints:

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Have a nice day!

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In a simplified version it can be expressed as 3/4.

Hope that helped. x

Step-by-step explanation:

21 divided by 7 is 3

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