If cos A = 12/37 and tan B = 15/8 of tan(A - B).
and angles A and B are in Quadrant I, find the value

hard

step-by-step explanation:

answer: 0.1,0.85

step-by-step explanation:

kayla would of sent 8

step-by-step explanation:

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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