Number of bacteria in a rapidly growing culture was estimated to be 10,000 at noon, 40,000 after 2hours Predict how many bacteria there will be at 5 p.m

In a secret government facility, a biological weapons test goes wrong, turning 10 test subjects into the walking dead. Every hour, each zombie manages to bite and infect three additional people. Assuming this rate is maintained for the first 12 hours after the outbreak begins, how many people would have been zombified then? Show your work.

During a research experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At 7:00 Am there were 5,000 bacteria present in the culture. At noon, the number of bacteria grew to 5,700. How many bacteria will there be at midnight? (Do not round until the final answer. Then round to the nearest whole number as needed.)

Radon is a gas emitted from the ground that can collect in houses in buildings. At certain levels it can cause lung cancer. Radon concentrations are measured in picocuries per liter (pCi/L). A radon level of 4 pCi/L is considered “acceptable” Radon levels in a house vary from week to week. In one house, a sample of 6 weeks had the following readings for radon level (in pCi/L):    1.9  2.8  3.9  3.9  4.2  5.7 Find the variance and standard deviation (definitional formula). Show your work using a table.

Carmen works in a laboratory that uses radioactive substances. The laboratory received a shipment of 300 g of radioactive radon, and 16 days later, 12.5 g of the radon remained. What is the half-life of radon?

How many times more intense is an earthquake of magnitude 8.2 than an earthquake of magnitude 7.5?

A fish population starts at 15000. The (annual) birth rate is 0.4; the (annual) death rate is 0.3. In addition, 1500 fish are stocked each year, and 2000 are caught and removed from the population each year. Determine the size of the population after 1 year and 2 years Answer to the nearest 1.

Your patient receives Crystodigin 0.1 mg po daily for an atrial arrhythmia. Crystodigin tablets 0.2 mg are available. How many tablets will you administer per dose?

The  µ  is less than 10 mins per day

If you leave a 100-W light bulb on for a week, how many joules of energy will be consumed?