99 Answered Questions for the topic Logarithmic functions

03/28/16

How can i find b?

A 43 mg of a vaccine is given to a patient to prevent measles. The vaccine leaves the body at a rate of5.2% per hour. b-The number of milligrams of vaccine in the body after h days is how many... more
Logarithmic Functions Logarithms

03/15/16

expand log(6x^3y^6)

 I"M DYING

03/10/16

The voltage V across a charged capacitor is given by V(t)6e(-.26)t volts, where t is in seconds.

The voltage V across a charged capacitor is given by V(t)6e(-.26)t volts, where t is in seconds.   (a) What is the voltage V(6) after 6 seconds? Find the time t when the voltage will be 1... more
Logarithmic Functions Word Problem Pre Calculus College Algebra

03/10/16

Finding the Actual Doubling Time (Logarithms and Exponential Models)

This problem involves the Rule of 70, which gives quick estimates of the doubling time of an exponentially growing quantity. If r% is the annual growth rate of the quantity, then the Rule of 70... more
Logarithmic Functions Domain Math Help For College

02/20/16

find domain of g(x)=log_5(6x+4)

The domain must be either greater than or less than x. Not sure how to set this up correctly. 
Logarithmic Functions Math College Algebra

02/17/16

Solve the equation for the indicated unknown.

Solve the equation for the indicated unknown. Write your answers exactly and then, where appropriate, approximate to four decimal places.    log(m-1)-log(m+1)=-1
Logarithmic Functions Math Logarithms

02/01/16

How do you solve log 8 ^ -1/3

log 8 ^ -1/3   The answer is log(1/2) = -0.301 . But what are the mathematical steps of how to go from    log 8 ^ -1/3 to log(1/2)
Logarithmic Functions

01/18/16

how to find asymtote of log2(x-4)+1

the 2 in "log2" is smaller ps not exponent 
Logarithmic Functions

12/09/15

If you have $300 and every 5.5 hours the money triples how much money would you have at the end of the day?

Every 5.5 hours the 300 triples for 24 hours 
Logarithmic Functions Logarithms

12/02/15

Use the properties of logarithms to write the expression as one single logarithm in simplest form

Use the properties of logarithms to write the expression as one single logarithm in simplest form 8log(base 5)*(4sqrt(x))-4log (base 5) *(x)
Logarithmic Functions

11/14/15

solve the given equation for x

LOGx (2)=3
Logarithmic Functions

11/07/15

find the domain of the function f(x)=log(x-2).

find the domain of the function f(x)=log(x-2). write your answer in interval notation.
Logarithmic Functions

11/06/15

find the domain of the function f(x)=log(x-2).

1. find the domain of the function f(x)=log(x-2).   2. evaluate log8^4 analytically.   3. use a graphing utility to solve the equation e^-x=3 lnx
Logarithmic Functions College Algebra

10/27/15

please help

logb2=0.135 and logb5=0.714, find logb(25/8)
Logarithmic Functions Algebra 2 Equation Algebra 2 Question

08/28/15

4 Algebra 2 Questions

1. Solve 2^x=32 and rewrite this equation in a logarithmic form. 2. Analyze the characteristics exponential and logarithmic functions. Make sure you talk about domain and range. 3. Demonstrate at... more
Logarithmic Functions

08/13/15

Explain why the graphs are different

The graphs of [y=log x + log (2x)] and [y=log (2x2)] are different. Although the graphs are different, simplifying the first expression using the laws of logarithms produces the second expression.... more
Logarithmic Functions

08/13/15

Describe three characteristics of the function y=log4x that remain unchanged under the following transformations

Describe three characteristics of the function y=log4x that remain unchanged under the following transformations: a vertical stretch by a factor of 3 and a horizontal compression by a factor of 2
Logarithmic Functions

08/12/15

For what value(s) of k will the following function have y-intercept of 1

For what value(s) of k will the following function have y-intercept of 1: f(x)=log4(-2x+k2)-1 Show Your Work
Logarithmic Functions

08/12/15

Logarithmic Transformations

State the transformations, in proper order, that are needed to turn f(x)=4log3(x-2) into g(x)=-2log3(x+1)
Logarithmic Functions Exponential Functions

08/12/15

The half-life of platinum-197 is 20 h. How long will it take for a 500-g sample to decay to 125 g?

Multiple Choice of: a) 10 h b) 40 h c) 20 h d) 80 h
Logarithmic Functions

07/08/15

. if 78.04% of the carbon-14 remains in the sample, estimate the age of the mummy. the half size carbon-14 is 5730 years

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Logarithmic Functions Exponential Functions

05/25/15

Solve the following equations. Round to 3 decimal places.

a) 2x+1 = 3x-1 b) log(2x+1) + log(x-1)= log9
Logarithmic Functions

05/15/15

this a algebra 2 question on logarithmic function using N=Be^2T

a bacteria grows according to the model N=Be^2t, where N is the number of bacteria after t hours and B is the initial number in the colony. how long does it take the colony to grow to 5 times its... more

05/04/15

Write the particular equation representing this data expressing air pressure as a function of altitude.

Climbing Mt. Everest is not an easy task! Not only is it a difficult hike, but the Earth’s atmosphere decreases exponentially as you climb above the Earth’s surface, and this makes it harder to... more
Logarithmic Functions

04/28/15

$8000 deposited at 5% compounded quarterly how long to reach at least 16,000

How long will it take?

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