Answer:
Remaining amount is 6.25 grams
Step-by-step explanation:
I had the same question not to long ago
one year what you would be left with is 50/2 which is 25 gram
second year, you would be left with 50/4 which is 12.5
third year what's left is 50/8 i.e 6.25
i do not understand what you are asking help for?
That is adjacent and huptonuse
soh cah toah
so that is cos
cos(x)=15/21
so tehrfor
cos⁻¹(15/21)=x
where cos⁻¹ means inverse not 1/cos
use your calculator to evaluate cos⁻¹(15/21) in degrees
it is about 44.4153 degres, rounded to 44 degrees
