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Mathematics
06.01.2021 15:43
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idklol81
idklol81
4,6(66 marks)

Step-by-step explanation:

You have everything you need to fill in the formula and find the area.  The apothem is 15 and the perimeter is 18(5) which is 90.  Therefore,

A=\frac{1}{2}(15)(90)

so the area is 675 units squared.

mackenziemelton26
mackenziemelton26
4,6(22 marks)

\huge\boxed{A=675}

Step-by-step explanation:

A=\dfrac{1}{2}asn\\\\a-\text{apothem}\\s-\text{side length}\\n-\text{number of sides}\\\\\text{We have:}\\\\a=15\\s=18\\n=5\\\\\text{Substitute:}\\\\A=\dfrac{1}{2}(15)(18)(5)=\dfrac{1350}{2}=675

drecooks713
drecooks713
4,9(80 marks)
1kilogram = 1000 gram 
1000 gram = 1000  × 1000 = 1 miligram = 10⁶ mg

kilogram to milligram:
1.989  × 10²⁷ kg = 1.989  × 10²⁷  × 10⁶ mg = 1.989  × 10²⁷⁺⁶ = 1.989  × 10³³ mg

milligram to kilogram:
1.989  × 10³³ mg = 1.989  × 10³³  ÷ 10⁶ = 1.989  × 10³³⁻⁶ = 1.989  × 10²⁷

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