Ruestion 16 ( 5 points) A linen artifact found in a crypt contains 81 percent of the carbon-14 that is present in living flax. To the nearest year, about how many years old is the artifact? (The half-life of carbon-14 is 5730 years.) Your Answer:

5) What number sets does the \( \sqrt{2} \) belong to?

Find the sum of \( 10+5 i \) and its complex conjugate. Write your answer in the form a + bi.

1. Найти обратную матрицу \( A=\left(\begin{array}{ccccc}1 & -x & 0 & 0 & 0 \\ 0 & 1 & -x & 0 & 0 \\ 0 & 0 & 1 & -x & 0 \\ 0 & 0 & 0 & 1 & -x \\ a_{0} & a_{1} & a_{2} & a_{3} & a_{4}\end{array}\right) \)

Convert to scientific notation. \( 2,250,000,000 \)

Ruestion 16 ( 5 points) A linen artifact found in a crypt contains 81 percent of the carbon-14 that is present in living flax. To the nearest year, about how many years old is the artifact? (The half-life of carbon-14 is 5730 years.) Your Answer: