Solve the following: 1. You find a skull in a nearby tribe ancient burial site and with the help of a
spectrometer, you discovered that the skull contains 9% of the C-14 found in a
modern skull. Assuming that the half-life of C-14 (radiocarbon) is 5,730 years, how
old is the skull?
2. Suppose that the population of a colony of bacteria increases exponentially. At the
start of an experiment, there are 10,000 bacteria, and one hour later, the
population has increased to 10,500. How long will it take for the population to
reach 25,000? Round off your answer to the nearest hour.​

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

Look at the example below which shows how the product property of radicals is used to simplify a radical. use the product property of radicals to simplify the following radical.

Naruto is choosing between two venues that will deliver food to his house. with probability 1/3 he will choose ramen mania (r), and with probability 2/3 he will choose sushi (s). if he chooses r, 15 minutes after making the call, the remaining time it takes the food to arrive is exponentially distributed with average 10 minutes. if he orders s, 10 minutes after making the call, the time it takes the food to arrive is exponentially distributed with an average of 12 minutes. given that he has already waited 25 minutes after calling, and the food has not arrived, what is the probability that he ordered from r? i am really stuck on how to set this up, so if you could be extra clear, that would be super ! in advance