Choose law of sines or law or cosines to solve the triangle: angle A = 40 degrees, a=5, b=9

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step-by-step explanation:

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step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?

i’m sorry but i don’t know sorry

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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