<img src="https://tex.z-dn.net/?f=%20%7Bn%7D%5E%7B2%7D%20%2B%2014n%20%2B%2016%20%3D%200" id="TexFormula1" title=" {n}^{2} + 14n

$\bf \stackrel{\textit{difference of squares}}{(6+3i)(6-3i)}\implies (6)^2-(3i)^2\implies \stackrel{\textit{recall }i^2=-1}{36-(3^2 i^2)}\implies 36-(9\cdot -1) \\\\\\ 36+9\implies 45$

3 0

3 years ago

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Find the total area of 2cm 8cm 9cm 1cm 7cm 7cm

Yuki888 [10]

The total area would be 7056 i believe

6 0

4 years ago

I need help with this practice problem solving The subject is : biodiversity index I will send an additional picture that goes a

snow_lady [41]

ANSWER

Biodiversity index = 0.096

EXPLANATION

Given 7 different organisms with their individual numbers.

Biodiversity Index is:

$\text{ }\frac{Total\text{ number of species}}{Total\text{ number of individuals in the area}}$

i.e:

$\begin{gathered} Biodiversity\text{ Index = }\frac{7}{15+2+30+1+4+16+5} \\ \text{ = }\frac{7}{73} \\ \text{ = 0.09589} \end{gathered}$

Hence, the Biodiversity Index of Fraya's local park is 0.096. This is a low biodiversity since it's closer to 0.

5 0

1 year ago