An accident in 1986 in Chernoby nuclear plant in
Ukraine released a large amount of plutonium into
the atmosphere. The half life of plutonium is about
24,110 years. Use the natural decay function to find
how long it will take for 20 grams to decay to 1
gram?

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse