Solve the exponential equation. Express the solution in terms of natural logarithms. Then, use a calculator to obtain a decimal approximation for the solution. e^x = 20.9 What is the solution in terms of natural logarithms? The solution set is
95,644 results
ALGEBRA CHECK ANSWERS
Solve each equation by graphing the related function. If the equation has no realnumber solution, write no solution. NOTE: when I write + it has a minus on the bottom too x^2+7=0 a. x= +7 b. x = +3.5 c. x= 0 d. no solution *** 3x^2=0 a. +3 b. +1/3 c. 0

Algebra II
Use natural logarithms to solve the equation.Round to the nearest thousandth. 5e^2x+11=30 Can someone explain it to me? So far, I got. e^2x+11=6 2x+11=In 6

Pre Calculus
Assume that x, y, and a are positive numbers. Use the properties of logarithms to write the expression log a 9 xy in terms of the logarithms of x and y. a. 9logbx+9logby b. 19 l o g b ( x + y ) c. 19 l o g b x + l o g b y d. logbx+logby e. 19 l o g b x +

algebra
Solve the exponential equation. Express the solution in terms of natural logarithms. Then, use a calculator to obtain a decimal approximation for the solution. e^x = 20.9 What is the solution in terms of natural logarithms? The solution set is { }.

Algebra
Please express in terms of sums and differences in logarithms. log a x^3 y^2 z

Substitution Method in Algebra!HELP PLZ!
Use the Substitution method to solve the system of equations. 3x + y = 5 4x  7y = 10 multiply first equation by 4 multiply second equation by 3 thus both equations have same x or y value in this case it is the x value. 12x + 4y = 20 12x  21y = 30 solve

Math
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. 7^4x = 4.9

exponential equationAlgebra
Solve the exponential equation. Express the solution set in terms of natural logarithms. 4^(x + 4) = 5^(2x + 5)This question I don't understand.

Math
Find the exact solution, using common logarithms, and a twodecimalplace approximation of each solution. log(7x + 4) = 2 + log(2x − 3) Solve the equation. log(x^3) = (log x)^2

PreCalc
Assume that x, y, z and b are positive numbers. Use the properties of logarithms to write the expression logb(4) sqrt((x^7 y^2)/(z^4)) in terms of the logarithms x, y, and z.

calculus
Use the first five terms of the exponential series and a calculator to approximate each value to the nearest hundredth. e^3.5 I honestly don't understand the concept or how to solve the problem. :(

Logs.
Can you please help me with the following log. problems? thanxs! Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. 7^x = 6^(x + 7) this is how far I got: x log 7/x log 7=

Physics
The Circuit contains a resistor R1, Resistor with R2 and an inductance L in series with a battery of emf ε0=V0 . R2 having a switch in parallel, the switch S is initially closed. At t = 0, the switch S is opened, so that an additional very large

Algebra/Precalculus
Solve the system of linear equations and check any solutions algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, express x, y, and z in terms of the parameter a.) 3x3y+6z=6 x+2yz=8 5x8y+13z=4 I don't know what

Algebraplease check my answers
Solve the equation by expressing each side as a power of the same base and then equating exponents. 9^(x  9)/8= sqrt of 9 i got 13 4^(x + 10) = 8^(x  6) i got 38 Solve the exponential equation. Express the solution set in terms of natural logarithms.

precalc
2^(3x + 1) = 3^(x − 2) (a) Find the exact solution of the exponential equation in terms of logarithms.

Math Algebra 2
#4. Express the logarithm in terms of log2M and log2N: log2 1/MN #5. Simplify: log4 3  log4 48 #6. Solve the equation: loga x = 3/2loga 9 + loga 2 #7. Solve the equation: logb (x2 + 7) = 2/3logb 64 #8. Solve the equation: loga (3x + 5)  loga (x  5) =

college algebra
Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a commaseparated list.) 4x − 3 = 32x x = _____

precalculus
solve exponential equation. express in exact form. e^x42e^x= 19

math
Hello, I am working on exponential equations of best fit. I have a table numbered from 17 with corresponding numbers. I put that into my calculator and came up with the exponential equation of best fit as y = 8.46(1.42)^x Now it wants to know how long it

Algebra Help
Express in terms of sums and differences of logarithms: log_a x^3 y^2 z

precalculus
solve the following logarithmic equation. be sure to reject any value of x that is not in the domain of the original logarithmic expression. give the exact answer. then, use the calculator to obtain a decimal appromiation, correct to two decimal places,

math
I don't understand logarithms. Is there a way to solve exponential equations without doing them? Ex, 10,000 = 394.970(1.259)^x How do I solve for the x?

Math
Exponetial Functions In the following exponential relations, solve for x using logarithms. Round your answers to 4 decimal places. a) 5^3x=65 b) 2^2x+3=80

Math  Exponential equation
Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. 5e^(x log(9)) = 11

Algebra 2
Express log A in terms of the 2 logarithms of prime numbers: A= (sqrt(3)*sqrt4(125))/7^3

Algebra
Use the quadratic formula to solve the equation for x in terms of y and y in terms of x. (Enter your answers as a commaseparated list. If there is no solution, enter NO SOLUTION.) 2x^2 + 7xy + 1 − y^2 = 0 y in terms of x y =

math
1. The table shows the number of wild strawberry plants in a particular forest t years after a forest fire. Use a graphing calculator to find the exponential function that best fits the set of data. Number of Wild Strawberry Plants years  wild strawberry

algebra
Solving exponential and logarithmic equation. An example of an exponential equation is: Solve for x: 5^x=125

calculus
solve the exponential equation. Express the solution in terms of natural logarithms. e^x=9.2 a. whats the solution in terms of natural logarithms? **is the answer e^9.2 or just e^9 b. type a decimal rounded to 3 decimal places.

Math
Do the following. (a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log 8.6 (114) =_____ (b) Give a calculator approximation (correct to four decimal places). log 8.6 (114)~~_____

Math Algebra 2
How do I put log in a TI84 calculator. #1.Express the logarithm in terms of log2M and log2N: log2(MN)4 #2. Express the logarithm in terms of log2M and log2N: log2 the cube root of M2N #3. Express the logarithm in terms of log2M and log2N: log2 (M/N)7 #4.

Pre Calc
Solve the following inequality in terms of natural logarithms (ln). (e^6x)+2 is less than or equal to 3.

math
solve for x without using a calculator 5^(x+1) = 25 i know that x would equal 1 because 5^2 is 25, but i don't know how to show how to solve it All you need to do is what you just did: Explain that if x = 1, the equation is satisfied. If you are looking

Algebra II
I need some help with some problems as well as need some checked. Could you please help me? Thanks! 1. How do you graph y=1/x 2. How do I the x and y intecepts using a graph? Solve and check the linear equation. 9. (4x2)+7=3(x+3) I got 14 10.

Algebra 2
I need help with this problem because I do not have a graphing calculator. Explain how you would solve this equation using your graphing calculator in five steps then give the solution. 2x 3y=8 5x+ 4y= 11

calculus
writing an exponential equation The function gives the value of a home in dollars in the year 1980 + t. Write an equation that can be used to determine the year in which the value of the home reached $100,000? Use ^ to denote an exponent. Do not solve the

Math
Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of In(x) in your answer.) log[8.4](112)=

trigonometry
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" Also Give checks. I know the use of logarithms is unnecessary but i have to show my solution by using logarithms and that's the only

college algebra
I need to find out the solution in terms of natural logarithms for this 10^x=2.5

Precalculus, algerbra 2, investment,
A stuffed animal dealer tells you that a fish he bought for $8 four years ago is now worth $200 follow the steps below to find the effective yield for this investment. Begin with the equation 8(1+r) ^4=200.Solve for (1+r) ^4 Take the common logarithm of

Math
Solve the inequality and express the solution in terms of intervals: x2/3x+5 ≤ 4 This is how I did it: x2/3x+5  4(3x+5) ≤ 0 x212x20/3x+5 ≤ 0 11(x+2)/3x+5 ≤ 0 Can you please tell me if the answer is right and if so then how do we express the

Pre Cal long problem( Can I see the work on this)
A stuffed animal dealer tells you that a fish he bought for $8 four years ago is now worth $200 follow the steps below to find the effective yield for this investment. Begin with the equation 8(1+r) ^4=200.Solve for (1+r) ^4 Take the common logarithm of

Pre calculus
Okay, I'm really fuzzy about my log and exponential chapter. For example, solving some exponential equation such as e^3x7 x e^2x=4e I assume I start this equation by taking the natural log of both sides, but how will I know just by looking at an equation

Algebra III / Core II
It has been since the beginning of last year since I last did this math and the teacher I currently have is a sub and doesn't know what the heck she's doing either  so if anyone can help me, that'd be oh so amazing! a. Solve d=rt in terms of d and t. b.

Trigonometry (Logarthims)
Give checks to the following two questions Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" without logarithms i can do this problem easily and i have. but when i try solving it with

college algebra
Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a commaseparated list.) 4^(x − 3) = 3^(2x) x = _____

trigonometry
okay so i have this trigonometry problem were i HAVE to use logarithms. Now this is my work but can u help me solve it using logarithms. Find the area of the following triangles:(use logarithms) 1) c=426, A=45degrees 48' 36",and B=61degrees 2' 13"

calculus
Having a really hard time with this! e^8x^25 = 14 solve the exponential equation express in exact form. Someone please help!

math
Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places). log_(9) \(77\) =

pre calculus
Solve the exponential equation Express you solutions in exact form only Please show your work e^2x  9e^x  20 = 2

Math
Exponetial Functions In the following exponential relations, solve for x using logarithms. Round your answers to 4 decimal places. a) 5^3x=65 b) 2^2x+3=80

Math  2
Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. (e^(2x) – 10e^x) / 13 = 3

precalculus
Find the exact solution and estimated solution to the equation using natural logarithms. If there is no solution, enter DNE in all capital letters. If there is just one solution, enter DNE in all capital letters in one of the answer boxes. Round the

Math
I need help on how to solve this type of problem please. 29.)Solve the inequality and express the solution in terms of intervals whenever possible. 1/(x2) ≥ 3/(x+1) THE ANSWER IS: ( ∞,1 ) U ( 2,(7/2) ]

Algebra
Solve the exponential equation using an algebraic solution: 2^x = 32

college algebra
1. find the equation of the line with the given properties. Express the equation in general form or slopeintercept form. perpendicular to the line 3x_y= 27; contains the point (9, 1) the equation of the line is ? 2. solve the polynomial inequality and

Engineering
I need help solving the following simultaneous equations, for the values of Vo and a: 1.4 = Vo e^32a 4 = Vo e^6a I've never come across simultaneous equations like this (e is the base of natural logarithms, so perhaps taking logs of both sides might

Algebra Multiple Choice
Hello, This is the last of questions I have for my practice assignment. Again I will put what I got. Thanks for your help. 1.) Solve the system using substitution. Write answer as an ordered pair. 4x+2y=8 5x2=y A.) First equation (2,8) B.) Second

college algebra
solve the following exponential equation. 7^x=8 a. x= Write in exact solution b. then with that answer move the decimal 3 points over

precalculus
solve the exponential equation. express the solution in terms of natural logarithims. Then, use a calculator to obtain a decimal point approximation for the solution. e^x=12.3 What is the solution in terms of natural logarithims? The solution set is ?

math: precalculus
Solve the equation. First express your answer in terms of natural logarithms (for instance, z=(2+ln5)/ln3). Then use a calculator to find an approximation for the answer. 3^x+9=2^x.

ALGEBRA
(a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log_(8.5) \(127\) = Give a calculator approximation (correct to four decimal places). log_(8.5) \(127\) ~=

Algebra 2
Find the solution of the exponential form in terms of logarithms 2^(2x+13) = 3^(x45)

college algebra
I need to find out the solution in terms of natural logarithms for this 10^x=2.5

Logarithm help please
Express y as a function of x. What is the domain? Explain your answer. log4y = x + log4 Solving exponential equations with logarithms Solve to the nearest thousandth. 5^1+x = 2^1x

Algebra 2
How do you solve this exponential equation using logarithms? 2*5^x=85 Do you start like this? xlog2*5=log85 I don't know what to do after that.

Precalculus
10x^2=2^x Hi! How do I go about solving an equation like this? It's meant to be a calculator solution but I'd love to know how it's done by hand. Logarithms maybe? .. Thank you in advance (:

ALGEBRA
Solve the exponential equation. Give the exact value for x. (Express all logarithmic functions in terms of ln(x) in your answer.) text((a) ) e^x = 10 x = text((b) ) e^x = 2.0 x = text((c) ) e^x = 37.9 x =

Factoring
What does 3x^33x+2=0 come out to? How would I solve this? Is the x cubed supposed to be x squared? You can compare the equation with the identity: (a+b)^3 = a^3 + 3 a^2 b + 3 a b^2 + b^3 which you can rewrite as: (a + b)^3 = 3 ab (a + b) + a^3 + b^3 (1)

precalculus
solve the equation 1. In x + In (x+12) =2 x= ? or either there is no solution 2. solve the exponential equation 9^x=6 What is the exact answer? 3. Use transformations to indentify the graph of the function. Then determine its domain, range, and horizontal

Math
solve the exponential function for x by using common logarithms. 5^x=50^x+1

math
Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places). = 1

ALGEBRA
Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places). log_(7) \(80\)

physics
Black hole in XRay Binary. An Xray binary consists of 2 stars with masses (the accreting compact object) and (the donor). The orbits are circular with radii and centered on the center of mass. (a) Find the orbital period of the binary following the

college algebra
Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. 3^x70*3^x=9

Math
Use the quadratic formula to solve the equation for x in terms of y and y in terms of x. (Enter your answers as a commaseparated list. If there is no solution, enter NO SOLUTION.) 2x^2 + 7xy + 1 − y^2 = 0 (a) x in terms of y x = (b) y in terms of x y =

Math
x^3 + 1.85x^2  x +0.15 = 0 how can you solve for x? An exact solution or a numerical solution? Exact solutions can be obtained as follows: x^3  1.85x^2 + x  0.15 = 0 First get rid of the quadratic term by substituting: x = (y + 1.85/3) You then obtain

precalculus
solve the exponential equation express in exact form only show all work. 2e^x= squareroot 10e^x +3

Math 2
Last one I promise. I'm having trouble with these. Express in terms of logarithms of x, y, z, or w. ln 4th root (x^6/(y^2 z)) Write the expression as one logarithm. ln y^4 + (1/3) ln(x^9 y^9) − 7 ln y

Algebra
Solve the inequality and express the solution in terms of intervals whenever possible.  x+3  < 0.01 I know the answer is : (3.01,2.99) Please show me how to solve this type of math problem.

PreCalc
Assume that x, y, z and b are positive numbers. Use the properties of logarithms to write the expression logb(4) sqrt((x^7 y^2)/(z^4)) in terms of the logarithms x, y, and z.

physics
Black hole in XRay Binary. (2.75/11.0 points) An Xray binary consists of 2 stars with masses (the accreting compact object) and (the donor). The orbits are circular with radii and centered on the center of mass. (a) Find the orbital period of the binary

Calculus
Solve for x. Don't do the work using algebra and don't use a calculator. The Laws of Logarithms will be helpful. ln(x^2  1)= 3

calculus
solve the following exponential equation. 8^x=3 what is the exact answer? a. x= ? b. there is no solution what is the answer approximated to 3 decimal places? a. x= ? b. there is no solution

Math/Calculus
Please check my work and correct any errors/point out any errors. Thanks. Solve the initialvalue problem using the method of undetermined coefficients. y''4y=e^xcos(x), y(0)=1, y'(0)=2 r^24=0, r1=2, r2=2 yc(x)=c1*e^2x+c2*e^2x

math
The scientists Verhulst (1828) where is the natural growth rate of the population when resources are limited and is a positive constant called carrying capacity of the environment. (a) Using sign analysis, find all constant solution and discuss the general

Circuits and electronics applications3
We are working on finding the particular solution for the firstorder linear constantcoefficient ordinary differential equation: RCdvP(t)dt+vP(t)=Vicos(ωt) The new idea is to find the particular solution for the related equation

College Algebra
4 + 5^6x = 8 (a) Find the exact solution of the exponential equation in terms of logarithms. x = (b) Use a calculator to find an approximation to the solution rounded to six decimal places. x = can any body help me out here please?

ALGEBRA
(a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log_(8.9) \(135\) = (b) Give a calculator approximation (correct to four decimal places). log_(8.9) \(135\) ~=

College Algebra
Problem: Use Common or Natural Logarithims to solve the exponential equations symboliclly. 2e^7x+4=4 (Round to four decimal places) I tried solving this way 2e/2^7x+4=4/2 e^7x+4=2 ln e^7x+4=ln 2 7x+4=ln 2 7x+44=ln 24 7x=ln 24 7x/7=ln 24/7 x=ln 24/7

Math
solve the exponential function for x using base 5 logarithms. 5^x+4=125^13x

Physics
An Xray binary consists of 2 stars with masses m1 (the accreting compact object) and m2 (the donor). The orbits are circular with radii r1 and r2 centered on the center of mass. (a) Find the orbital period T of the binary following the guidelines given in

Algebra help
Express in terms of logarithms of a, b, and c: log(a^3b^2)/c How would I convert this?

algebra
Exponential functions and logarithms 1) ln(1/cuberoot e^2) 2)e^ln12 3)log3(root3)^5 4) 3^x2=18 5)e^3x+=10 6)8^x=5^2x1 I'm really not positive on how to solve these

Pre Calculus
Why can we use either common or natural logarithms to reexpress data that fit a power regression model? Couldn't really figure out what the relationship was.

physics
Black hole in XRay Binary. (2.75/11.0 points) An Xray binary consists of 2 stars with masses (the accreting compact object) and (the donor). The orbits are circular with radii and centered on the center of mass. (a) Find the orbital period of the binary

Math
Solve for t using natural logarithms. 7e^3t = 10e^2t

Algebra 2
I need help with this problem because I do not have a graphing calculator. Explain how you would solve this equation using your graphing calculator in five steps then give the solution. 2x 3y=8 5x+ 4y= 11 Also how do you determine how many solutions a

calculus
Use the Intermediate Value Theorem to prove that the equation has a solution. Then use a graphing calculator or computer grapher to solve the equation. 2x^32x^22x+1=0 i am completely lost & have no idea where to start.