3 years ago

Laylandwatson can you answer this please The average height of an ostrich is 255 cm.

Mathematics

1 answer:

Alex73 [517]3 years ago

8 0

Answer:

Step-by-step explanation:

hmmmmm

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How did it get 683.8?

GalinKa [24]

9514 1404 393

Explanation:

638.8 is the result of evaluating the expression ...

$\dfrac{400}{\dfrac{1}{\tan^2{57^\circ}}+\dfrac{1}{\tan^2{68^\circ}}}\approx\dfrac{400}{\dfrac{1}{1.53986^2}+\dfrac{1}{2.47509^2}}=\dfrac{400}{0.42173+0.163237}\\\\\\=\dfrac{400}{0.584967}=683.799\approx\boxed{683.8}$

Any scientific or graphing calculator or spreadsheet can compute this for you. (You may need to be careful to set <em>Degrees mode</em> for the angles.)

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3 years ago

2/3 times what equals 3/2

Leya [2.2K]

$\dfrac 23 \cdot x = \dfrac 32 \\\\\implies 2x = \dfrac 92\\\\\implies x =\dfrac 94$