# Questions on Algebra: Exponent and logarithm as functions of power answered by real tutors!

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 Algebra: Exponent and logarithm as functions of power Solvers Lessons Answers archive Quiz In Depth

 Question 104557: why does negative 1 as an exponent give you 1/5 or .5? Click here to see answer by stanbon(57377)

 Question 104640: if 3√x^6 + 3√8x^3 + 3 √1=0, then x = A -1 B 0 C 1 D 2 E 3 Click here to see answer by HyperBrain(694)

 Question 105184: Evaluate the given function for the value specified. F(x)= X(squared)-7X+10;find (a) f(0), (b)f(5)and (c)f(-2) Rewrite the given equation as a function of x: -3x+4y=11 Graph the given function: f(x)= -2x-5 if f(x)=4x-3 find f(-1) Click here to see answer by cheesey(22)

 Question 106033: How long does it take an investment to double if it grows according to the formula V=537e^.015t? Assume t is in years? (^ is used to show that e has been raised to the .015t power). Click here to see answer by Fombitz(13828)

 Question 106534: I would appreciate it if u could explain maybe step by step how to solve this problem or at least on like it, and thank you in advanced! (1/3)^x = 243 i have attempted this problem and i have got it down to (1/3)^x = 27^9 but i am not sure if i am doing this correctly. And thank you once again. Click here to see answer by stanbon(57377)

 Question 106619: Exponential equations without using logs. Solve for x: 3^(4x+1)= 27 Click here to see answer by stanbon(57377)

 Question 106647: Exponential equation without logs. Solve for x: (4/5)^(-4x+5)= 64/125 Click here to see answer by stanbon(57377)

 Question 106644: Exponential equation without logs. Solve for x: 5^(2x+4)= 125^(x-4) Click here to see answer by stanbon(57377)

 Question 106642: Exponential equation without using logs. Solve for x: 5^(-3x+1)=15625 Click here to see answer by edjones(7569)
 Question 106642: Exponential equation without using logs. Solve for x: 5^(-3x+1)=15625 Click here to see answer by Earlsdon(6287)

 Question 106753: According to the U.S. Census Bureau the population of the United States has been growing at an average of approximately 2% per year. The census is taken every 10 years and the population in 1980 was estimated at 226 million people c) If the rate of population growth in the U.S. were to continue at about 2%, in about what year would the population in the United States reach and surpass one billion? Click here to see answer by stanbon(57377)

 Question 106748: Express the following exponential equation as a logarithmic equation: (256)^.25=4 Click here to see answer by scott8148(6628)

 Question 106898: Express the answer in terms of e. Then use a caculator to obtain a decimal approximation, correct to two decimal places, for the solution. 1.)5In(2x) =20 Evaluate logarithmic 1.)4 In (x + 6) – 3 In x Click here to see answer by Fombitz(13828)

 Question 106897: Hello and Thank you all (ahead of time) If the inflation rate is 6%, how much will a house now worth \$65,000 be worth in 10years? Please show how to get to this (very thankful, so I can comprehend the steps I need) Click here to see answer by checkley75(3666)

 Question 107016: find the value and interest earned if \$8906.54 is invested for 9 years at 5% compunded a) semiannually b) continuously I tried A=Pe(rt) P=8906.54 r=5% t=9 but i keep getting a figure different from the book the book says \$13,968.24 ; \$5061.70 am I using the wrong formula? Click here to see answer by scott8148(6628)

 Question 107094: express as a single log: 1/2loga x + 4loga y -1/3loga z Click here to see answer by solver91311(16897)

 Question 107431: How do u find the exact value for x that satisy the equation Click here to see answer by edjones(7569)

 Question 107504: I need help solving exponetial inequalities using logartihms. i can get to this step- 2nlog8=4n+3log52. Click here to see answer by Edwin McCravy(8909)

 Question 107579: Dear tutor thank you (in advance for answering my question) The question I wanted to ask is How do you solve the equation I knew that i need to use y to substitute the equation but how? Click here to see answer by stanbon(57377)
 Question 107579: Dear tutor thank you (in advance for answering my question) The question I wanted to ask is How do you solve the equation I knew that i need to use y to substitute the equation but how? Click here to see answer by bucky(2189)

 Question 107732: Simplify the expression: (1/8)^-2/3 + (1/4)^-1/2 I don't know how to do this! Do I find the LCD first? (1/8)^-2/3 + (2/8)^1/2 Click here to see answer by solver91311(16897)

 Question 108040: Would you please help me with this problem? Find the zeros of the polynomial function. If a zero is a multiple zero, state its multiplicity. P(x)=2x^3-8x^2+7x+6. Thank you for your help. I really appreciate it. Click here to see answer by stanbon(57377)

 Question 108041: I would greatly appreciate any help you can give me in working this problem - Question: Use algebraic procedures to find the exact solutions of the equation. Problem: log(2x^2+3x)=log(10x+30) Thank you for your assistance. Click here to see answer by stanbon(57377)

 Question 108659: The problem is: 5 + ln x^2 = 4 I have absolutely no idea how to solve this problem. Please and thank you in advance ! Click here to see answer by scott8148(6628)

 Question 108657: The problem is: 4^2x-7=64 I did 2x -7 * log 4 = log 64 then i did 2x-7 * .602 = 1.806 I'm not sure where to go from here. Click here to see answer by scott8148(6628)

 Question 108808: The problem is: 5+ ln x^2 = 4 I have absolutely no clue how to solve this problem. Please and thank you in advance. Click here to see answer by Fombitz(13828)
 Question 108808: The problem is: 5+ ln x^2 = 4 I have absolutely no clue how to solve this problem. Please and thank you in advance. Click here to see answer by Earlsdon(6287)

 Question 108817: Express Log functions as exponentil functions: a. Log m = 3 my answer:3 b. log 5 =y c. ln b =2 For B and C I'm extremely unsure of how to do them, I do not even know where to start. Thank you for your help. Click here to see answer by stanbon(57377)
 Question 108817: Express Log functions as exponentil functions: a. Log m = 3 my answer:3 b. log 5 =y c. ln b =2 For B and C I'm extremely unsure of how to do them, I do not even know where to start. Thank you for your help. Click here to see answer by Fombitz(13828)

 Question 108805: The problem is: 5+ ln x^2 = 4 I have absolutely no clue how to solve this problem. Please and thank you in advance. Click here to see answer by stanbon(57377)

 Question 108918: hello i need help on this LN problem ln^x+ln^3x=12 Click here to see answer by Fombitz(13828)

 Question 108943: USING THE LOG PROPERTIES WRITE THE FOLLOWING AS A SINGLE LOG. EXPRESS ANY EXPONENTS AS EXPONENTS RATHER THAN FACTORS LOG(X^5/X-5) + LOG(3(X-5)/X)-3LOGx Click here to see answer by ankor@dixie-net.com(15659)