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Sedbober [7]
3 years ago
5

Please helppppppppppp

Mathematics
1 answer:
garri49 [273]3 years ago
5 0

Answer:

a)0.0000165 moles per liter

b) 6.4*10^3 pounds

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Change the fraction 3/4 to a percent
Rom4ik [11]
To convert 3/4 to a percent we need to convert 3/4 to a decimal and then multiply the decimal by 100. Lets do it:-

To convert a fraction to a decimal we have to divide the numerator by the denominator.

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6 0
4 years ago
The size of each interior angle of a regular polygon is 156 degrees. Work out the number of sides the polygon has.
stira [4]
\alpha = \frac{n-2}{n} \cdot 180 \ \ \ \ \ \ \ [\alpha =interior\ angle, \ n=number \ of \ sides] \\  \\ 156=\frac{n-2}{n} \cdot 180 \\ 156n=(n-2)180 \\ 156n = 180n - 360 \\ 360 = 180n-156n \\ 360 = 24n \\ n=360/24=15

<span>The polygon has 15 sides.</span>
4 0
3 years ago
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