A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive substance. After 30 hours, 95 mg of the substance remains. How many milligrams will remain after 48 hours? mg

Q: 74 rabbits are released in an isolated area free of predators. After 2 years, it is estimated that…

A: Given, After 2 years, population of rabbit increased to 296 (74*4) , which is four times of initial…

Q: Find the equation for an exponential function

A:

Q: A radioactive substance decays exponentially. A scientist begins with 140 milligrams of a…

A: Exponential decay model:- x(t)=Ce-ktwhere x is the amount of substance at time tk is the rate of…

Q: In 1980 1.862 million people lived in San Diego county. In 2010it had 3.103 million people. Assuming…

A: let exponential equation P=abt a is the population in 1980 i.e., 1.862 Million and  b is growth…

Q: The amount of a certain antibiotic that remains in the bloodstream of a patient exhibits exponential…

A: From the given problem we get an equation is D= 400×e^(-0.02t)

Q: The population of a Midwestern city decays exponentially. If the population decreased from 900,000…

A: Given data is : Population in 2003 is 900,000 Population in 2005 is 800,000 To find the population…

Q: The amount of a certain antibiotic that remains in thr bloodstream of a patient exhibits exponential…

A: Consider the amount of a certain antibiotic which remains in the bloodstream of a patient exhibits…

Q: The​ half-life of a certain tranquilizer in the bloodstream is 37 hours. How long will it take for…

A:

Q: A radioactive substance decays exponentially. A scientist begins with 180 milligrams of a…

A: Given:- A radioactive substance decays exponentially. A scientist begins with 180 milligrams of a…

Q: A radioactive substance, calculusium, has a half life of 72 years. If the amount after 40 years is…

A: According to question given that A radioactive substance, calculusium has a half life of =72 years…

Q: Find a formula for the exponential function passing through the points (-2,4/25)and (1,20)

A: Let the exponential function is

Q: purchased a new car in 2010 for $16,200.The value of the car has been depreciating exponentially at…

A: Please refer to the image below

Q: A car purchased for $40,000 depreciates exponentially. After one year, the car is valued at $25,000.…

A: We have to find depreciating after 3 years.

Q: A radioactive substance decays exponentially. A scientist begins with 110 milligrams of a…

A:

Q: The number of bacteria in a culture is increasing according to the law of exponential growth. There…

A:

Q: A radioactive substance decays exponentially. A scientist begins with 180 milligrams of a…

A:

Q: In 2017, the population of a district was 20,800. With a continuous annual growth rate of…

A: Given: In 2017, the population of a district was 20,800. A continuous annual growth rate is of…

Q: There are currently 69 million cars in a certain country, increasing exponentially by 5.1% annually.…

A: amount = P(1+r/100)T

Q: A radioactive substance decays exponentially. A scientist begins with 140 milligrams of a…

A:

Q: A radioactive substance decays exponentially. A scientist begins with 100 milligrams of a…

A:

Q: The number of bats in a colony is grown exponentially. After two years there are 180 bats. After…

A:

Q: A boat purchased for $25,000 depreciates exponentially. After one year, the car is valued at…

A:

Q: Four months after it stops advertising, a manufacturing company notices that its sales have dropped…

A: given that,Four months after company stops advertising, a manufacturing company notices its sales…

Q: The population of a city is 85,000 and increases by 2.4% each year. Which exponential function…

A: Given, Initial population P(0)=85000 k=2.4%=0.024

Q: A car is purchased at $18,000. The car depreciates by 5% each year. Give the exponential model. How…

A:

Q: Country A haS a growth rate of 3.296 per year. The population is currently 5,965,000, and the land…

A: Let P be the population of country A after t years. Given that the growth rate of country A is 3.2%…

Q: The population of a southern city follows the exponential law. If the population doubled in size…

A: The exponential equation for finding doubled the population is,

Q: Find the equation of an exponential function that goes through the following two points (0,8) and…

A: We have to find the equation of an exponential function that goes through the following two points…

Q: Suppose a $40,000 car loses 13% of its value each year. Write an exponential equation and use it to…

A: Given- $40,000 , and its loses 13% of its value each year. To find-  In how many years (to the…

Q: Find the formula for an exponential function that passes through the two given points. (1,-1) and…

A: Suppose the function is of the form

Q: A scientist begins with 200 milligrams of a radioactive substance that decays exponentially. After…

A: We will solve for the amount remaining after the given time.

Q: A radioative substance decays exponentially. A scientist begins with 150mg of a substance. How many…

A: Consider the rate of decay is of the form, y=a1-rx Here, y is the final amount, a is the initial…

Q: Find a formula for the exponential function passing through the points (-1,5/4) and (2,80) y =

A:

Q: A petri dish currently has a population of 10 bacteria and the population doubles every year. Write…

A:

Q: what is the equation of the exponential function that goes through the points (1,10) and (4,80)?

A: solution:-

Q: The count in a bacteria culture was 400 after 20 minutes and 1500 after 30 minutes. Assuming the…

A: The solution is given as follows

Q: Use the exponential decay model, A = A0ekt, to solve:The half-life of thorium-229 is 7340 years. How…

A: Given exponential decay function: A=A0ekt......(1) where A0, of radioactive substance, A represents…

Q: A radioactive substance decays exponentially. There are 400 milligrams of the substance to begin…

A:

Q: The value of a collectible toy is increasing exponentially. The

A: Given the collectible toy is increased exponentially. The two points on the graph show the toy's…

Q: Find a formula for the exponential function passing through the points (-1,5) and (3,54) y =

A: use the general form of exponential function . and use this point to get the coefficient of…

Q: Find a formula for the exponential function passing through the points (-2, 3 ) and (2,48) 16 y =

A:

Q: A radioactive substance decays exponentially. A scientist begins with 110 milligrams of a…

A: The number of atoms N of a radioactive substance which remain undecayed after an elapse of time t…

Q: In certain soil conditions, the number of surviving larvae in the hatch of an insect called a…

A:

Q: Find a formula for the exponential function passing through the points (-3, and (1, 20). 64 y =

A:

Q: A radioactive substance decays exponentially. A scientist begins with 160 milligrams of a…

A: Given: Initial amount of substance is 160 milligrams. After 32 hours, 80 mg substance is left. To…

Q: A radioactive substance decays exponentially. A scientist begins with 150 milligrams of a…

A:

Q: A radioactive substance, calculuism, has a half life of 72 years. If the amount after 40 years is 92…

A:

Q: The count in a bacteria culture was 800 after 15 minutes and 2000 after 40 minutes. Assuming the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…