A certain material doubles in population every year. After 15 years, there are 1 billion atoms...
Suppose a population of cats doubles every year. If the population started with 2 cats, how many cats will there be after 7 years?
A population of bacteria doubles every 5 hours. If the initial size of the population is 1 (measured in millions). (a) Find the formula for the population P (t) after t hours. (b) What is the population after 15 hours? (c) When will the population reach 10 (measured in millions)?
write a function p(t) that describes the population after t days of a colony of 1000 fire ants that doubles in population every 13 days, then how long would it take for the ant population to reach 10,000
28. In 1980 the world population was approximately 4.5 billion and in the year 2000 it was approximately 6 billion. Assume that the world population at each time t increases at a rate proportional to the population at time t. Measure t in years after 1980. a) Find the growth constant and give the world population at any time t. b) How long will it take for the world population to reach 9 billion (double the 1980 population)? c) The...
(1 point) A population doubles every 17 years. Assuming exponential growth find the following: (a) The annual growth rate is * %. help (numbers) (b) The continuous growth rate is ! % per year. help (numbers)
A certain microbe, growing at a rate proportional to its size, doubles its population every 10 hours. After 13 hours the total population has mass 560 grams. What was the initial mass? (Round your answer to 3 decimal places.) initial mass = grams Submit Answer Tries 0/3
How long would it take for an initial population of 28 to reach a size of 320 wolves in the Greater Yellowstone Ecosystem (GYE)?Assume the population doubles every 7 years. Answer: _____ Years Please show work
The number of cells in a tumor doubles every 15 months. If the tumor begins with a single cell, how many cells will there be after 2 years after 3 years? How may cells will there be after 2 years? (Do not round until the final answer. Then round to the nearest whole number as needed) How many cells will there be after 3 years? (Do not round until the final answer. Then round to the nearest whole number as...
MORE PRACTICE PROBLEMS 1. A population of Drosophila mauritiana every generation, and generations OCCU 1.000, and its population growth rate is 3.0 per generaron of Drosophila mauritiana reproduces in synchrony at discrete time periods on, and generations occur at two-week intervals. The current population size is a. What kind of growth is this Geometric or exponentials b. What equation should you use? Net - (Ni c. What will the expected size of the population be after six weeks 9. For...
A solution contains 1 billion P atoms (T1/2 of P is 14.3 yrs and it Bdecays with a maximum energy of 1.71 MeV to S) (a) What is the activity in bequerels? (b) How many atoms of phosphorus and of sulfur are there after 1 week? (c) How long will it take for only 100 32P atoms to remain? (d) When will there be no 3P atoms left?