<u>Answer:</u>
29 years
<u>Step-by-step explanation:</u>
- Given the function
, where x stands for the number of years since the material was put into the vault, we can plug 140 into x to find the amount leftover. - Another way of doing this is to change the function to
which are equivalent functions, and then plug 140 into x. This function is helpful if you also needed to find the rate. - I'll use the 1st function because the question doesn't ask for the rate
From here I'll just use a calculator & get 28.7, or 29 years.
Answer: (30-18)=-9 First, I multiply the 3 to the 10. Then I solve what's in the parentheses which was -3 × 2 which got me -6.
Step-by-step explanation:
0.001374
standard form means writing a value in shortened form, because sometimes values are too big or small to be written, so we use standard form.
in standard for the decimal always comes after the first digit
so,
the decimal moves 3 digits to the right so it becomes ten raised to the power minus 3.
The answer would be:
D <span>{(1, 8.65), (2, 8.30), (3, 7.95)}</span>
