241 Answered Questions for the topic Exponential Functions

solve for a b c and d exponential functions

suppose 𝑓(π‘₯)=π‘₯+4and𝑔(π‘₯)=2π‘₯βˆ’5 thenA.) (π‘“βˆ˜π‘”)(π‘₯)=B.) (π‘“βˆ˜π‘”)^βˆ’1(π‘₯)=C.) (𝑔^βˆ’1βˆ˜π‘“^βˆ’1)(π‘₯)=D.) (𝑔^-1∘f^-1)(x)=

Interpreting and Using Exponential Functions

A scientist models the number of grams of a radioactive substance with the expression 15(1/2)^(d/5), where d is the number of days since the sample was measured. After how many days has half of... more

exponential functions

An exponential function, in the for f(x)=ab^x, passes through the points (2,5) and (4,180). Find b.

exponential equation identification

Find the exponential function f(x)=Ca^x whose graph goes through the points (0,2) and (3,16). a=Β  C=Β  Β 

Exponential Function?

coolsculpting is a fairly new fat-freezing procedure. One treatment dissolves about 25% of the fat cells in the treated region. a) If a patient starts wih 5 lbs of fat in the treated region, how... more

EXPONENTIAL EQUATIONS & FUNCTIONS

A culture of bacteria doubles in weight approximately every 2.5 hours. The number of bacteria after t hours later can be approximated by 𝑁(𝑑) = 175(2.5)t a) How many bacteria would there be... more

Exponential Functions

The population of a city was about 1.78 thousand in the year 2014, with an annual growth rate of about 1.3%. This situation is represented by the growth function P(t)=1.78(1.013)t , where t is the... more

Exponential Functions

If we invest $4,000.00 in an investment account paying 1% interest compounded monthly, how much will the account be worth in 7 years? Β Β Β Β Β Β Β Β Β Β A(t)=P(1+r/n)nt. The account in 7 years will be worth

Exponential Functions

The population of a city was about 1.78 thousand in the year 2014, with an annual growth rate of about 1.3%. This situation is represented by the growth function... more

Exponential Functions

A 529 Plan is a college-savings plan that allows relatives to invest money to pay for a child's future college tuition; the account grows tax-free. Lily wants to set up a 529 account for her new... more

Exponential Functions

The population of a city was about 1.78 thousand in the year 2014, with an annual growth rate of about 1.3%. This situation is represented by the growth function P(t)=1.78(1.013)tΒ Β Β ... more

Exponential Functions math word problem

A bacteria culture starts with 620620 bacteria and grows at a rate proportional to its size. After 44 hours there will be 24802480 bacteria. Β  1) Express the population P after t hours as a... more

Exponential Functions help

Radon-222 decays at a continuous rate of 17.3% per day. How much will 500 mg of Radon-222 decay to in 10 days? Β  So____?_____ mg of Radon-222 will remain. (Round answer to 5 decimal places)

math problem

Find the time it takes for $6,600 to double when invested at an annual interest rate of 19%, compounded continuously. Β  _______ years? Β  Β  Find the time it takes for $660,000 to double when... more

Exponential Functions word problem

A person invested $3,500 in an account earning a nominal 7% per year compounded continuously. How much was in the account at the end of 5 years?A(t)=Pert Β  $_________ please round answer to 2... more

Exponential decrease

A medicine is given with a dosage of 30mg, during the first 4 hours 17.7 mg of the drug is broken down. A body generally does this exponentially. Β  What is the rate of decay? When writing it as a... more

When Facebook was founded it had three initial users. At the end of each month the computers determine the number of users by 75%

When Facebook was founded it had three initial users. Now, since so many people use Facebook, they use computers to calculate the total users. At the end of each month, at midnight, the computers... more

Exponential function

K(t) = 50Β Β· 0.65t Β  with t the time in hours. Β  For this formula calculate the growth factor per 15 minutes. Β  And, the forumila K(t) can be rewritten in a form t= A log(K) + B. Do this to... more
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