Answer:
The square root of a negative number is not a real number
=
−
9
8
8
Step-by-step explanation:
Find total instruments:
20+20+45+15 = 100
20 are brass
The portion would be number of brass over total:
20/100 which reduces to 1/5 are brass
The researchers should flip a coin to decide independently for each subject, to randomly assign the cola recipe for each subject
Apex :)
Use the law of cosines to solve for angle A. Plug your known side length values into the equation a^2 = b^2 + c^2 – 2bc cos A.
Then use the law of sines to find angle B. (Sin A/a = Sin B/b = Sin C/c).
Because the two red angles within B are congruent, divide your angle measure in half.
From there, do the law of sines to solve for x. Good luck!
I hopes this helps
Answer:
Step-by-step explanation:
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