madisonworthington7
25.07.2019 •
Health
You can dangers in the home by being prepared.
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Ответ:
Ответ:
B. 25,636
Step-by-step explanation:
In this example we will us the sin.
sin55=21000/x
multiply both sides by x
sin55(x)=21000
the sin of 55 degrees is around 0.81915 so we can substitute that number
0.81915x=21000
divide both sides by 0.81915
x≈25636.3303424
we can then round this number to get:
answer choice B 25636