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Katyanochek1 [597]
3 years ago
9

Can any one help me i really need it

Mathematics
2 answers:
goblinko [34]3 years ago
6 0

Answer:

i got 722.5, Not sure if this is right but it's what I got

Vilka [71]3 years ago
5 0
34 try the app Cymath it’s great for math
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What is the percent decrease if the number of student is 80 and now its 64.
Neporo4naja [7]

Answer:

.2

Step-by-step explanation:

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8 0
3 years ago
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What is the scientific notation of 0.00165?
Ierofanga [76]

Answer:

The answer is 1.65*10^{-3}

Step-by-step explanation:

when writing scientific notation, there must be one number to the left of the decimal point.

To achieve this in this problem, you need to move the decimal point 3 times to the right.

because you are moving the point to the right, the exponent will be negative.

*rule of thumb: moving the decimal to the left will give you a positive exponent, moving to the right will give you a negative exponent*

therefore you answer should be written as:

1.65*10^{-3}

hope this helps :)

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3 years ago
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=4.5

So x=root over 4.5

Which is approximately 2.25
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