Find the missing value for the radioactive isotope. (round your answer to two decimal places.)

isotope: 14c

half-life (in years): 5715

amount after 1000 years: 1 g

find the initial quantity

explain answers. i don't understand how to solve this.

1.1289 grams ( approx )

Step-by-step explanation:

Since, the final quantity of an element which has half life of n periods,

Where,

P = initial quantity,

t = total number of periods,

Here, A = 1 gram, t = 1000 years, n = 5715 years,

By substituting the values,

( using calculator )

Hence, the initial quantity would be 1.1289 grams ( approx )

nothjing

step-by-step explanation:

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.