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Aleks [24]
3 years ago
8

What is the correct answer in significant figures for the calculation of a volume (in mL) with measured numbers 28.58 / 16 X 8.0

2 ? [28.58 (as numerator)] divided by [(16 times 8.02 )as denominator]
Mathematics
1 answer:
juin [17]3 years ago
4 0

Answer: 0.2223mL

Step-by-step explanation:

Since the maximum significant figure in question is 4sf, our answer will be converted to 4sf.

Calculating 28.58/16×8.02 = 0.222377

= 0.2223mL to 4 significant figures

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A + B
Klio2033 [76]

Answer:

A= 0.5 and B= 4040

Step-by-step explanation:

If you write out the equation and rearrange a little it gets easier to understand.

( a + b) + (a*b) + (a - b)  you can rewrite this as

a + b + a - b + (a*b)  this is the same as 2a + ab = 2021

The way I looked at it is to figure out how to get that number 1 at the end.

The number 2020 is easy to get to.  How can you get the number 1 using either 2a or ab.

I looked at a = 0.5.   2 times 0.5 would be 1.

So now what would b have to be?  We can get the 1 at the end with the 2a part of the equation so now we have to get ab = 2020.

b = 2020/a  which using our a = 0.5, you can see that b would have to equal 4040.  Test it all out in your equation.

0.5 + 4040 + (0.5 * 4040) + 0.5 - 4040

4040.5 + (2020) - 4039.5 = 2021

So A = 0.5  and B = 4040

4 0
3 years ago
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Montano1993 [528]

Answer:

  1. <em> n - 2 = 52</em>
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<em />

please rate and heart :)

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Step-by-step explanation:

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3.4+1.1=4.5

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Answer:

I think it's the second one.

Step-by-step explanation:

Hope dis helps :D

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