# 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 311598: Use the change of base formula to evaluate Click here to see answer by Edwin McCravy(8883)

 Question 311997: 10log(x)-7 log(y)+5 log(z) I keep getting: But this is wrong, why? Click here to see answer by Edwin McCravy(8883)

 Question 312603: okay i can't remember what this is called but here is the problem i need to solve: find(f0g)(x) for f(x)= 3x^2 and g(x)=5-x Click here to see answer by scott8148(6628)

 Question 313689: How long will it take for prices in the economy to double at a 7% annual inflation rate? Use the exponential growth rate model P(t) = Poe^k^t. Click here to see answer by rapaljer(4667)

 Question 313685: /describe a health care situation that can be described using a logarithmic function or an exponential function. present the function. Click here to see answer by stanbon(57262)

 Question 314039: Can someone please help me with this: I need to show my work on it but I'm not sure what to do. Add: (-8x4 + 3x6 - 8) + (-6x6 - 6 + 3x4). Click here to see answer by Fombitz(13828)

 Question 314190: Divide: (9y + 18 – 11y2 + 12y3)/ (4y + 3) Click here to see answer by Fombitz(13828)

 Question 314245: Use product rule to simplify the expression. (-5)^6 x (-5)^6 Write in Exponential form. Help is appreciated! Click here to see answer by Jstrasner(106)

 Question 314254: Multiply and Simplify 3^6 x 3^5 write in expoentntial expression is the answer 3^11? Click here to see answer by Fombitz(13828)

 Question 314513: The number of acres in a landfill is given by the function B = 6900e^-0.02t , where t is measured in years. How many acres will the landfill have after 10 years? Click here to see answer by nerdybill(6951)

 Question 314730: describe the effect of different values of a on the function y=ab^x Click here to see answer by Fombitz(13828)

 Question 314902: please can someone help. i feel as though i am never going to get this problem solved. it is involving the following: evaluate the logarithmic equation for the values of x that are greater than 1, and at x=1 show work and use resulting pairs to plot graph...show graph. i got it with the other one but keep messing up with the log ones. y=log2x (2 is on the lower part of the g) thanks for the help. Click here to see answer by solver91311(16872)

 Question 315081: state the domain and range of the function g(x)=In x +2 Click here to see answer by Fombitz(13828)

 Question 315275: As a fraction: Using the Quotient Rule for Radicals Simplify the following Radical: a Fraction: Square root sign over 4t^2/Square root sign over 24t^4 Click here to see answer by Fombitz(13828)

 Question 315266: evaluate the exponential equation for three positive values of x, three negative values of x and at x=0; transform the second expression into the equivalent lagarithmic equation; and evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. show your work. use the resulting ordered pairs to plot the graph of each function; y= 2^x+2 x= 4^y+2 Click here to see answer by ankor@dixie-net.com(15641)

 Question 315374: A laptop computer is purchased for \$1500. Its value each year is about 80% of its value in the preceding year. Its value in dollars after t years is given by the exponential function v(t) = 1500(0.8)^t. a) After what amount of time will the computer's value be \$900? b) After what amount of time will the computer's value be half the original value? Click here to see answer by josmiceli(9662)

 Question 315612: how can I solve log 3 (x- 1)? Click here to see answer by stanbon(57262)

 Question 315632: Students in a biology class just took a final exam. A formula for predicting the average exam grade on a similar test t months later is a) Find the students’ average score when they first took the final exam. [12.7] b) What would the expected average score be on a retest after 4 months? [12.7] S(t) = 78 - 15 LOG (t + 1) Click here to see answer by stanbon(57262)

 Question 315949: Divide: (4x˛ + 23x – 6) ÷ (4x - 1) please show work Click here to see answer by Edwin McCravy(8883)

 Question 316503: If (8^a)(8^b)=8^c/8^d what is d in terms of a,b,c? Click here to see answer by Fombitz(13828)

 Question 317239: Please Show work: Subtract: 4/6(x-1) - 3/6(x-1) would this be 1/6(x-1)? (4-1)/6(x-1) or could it simply be 1 because 6(x-1) cancels out...? or is it something completely different? Click here to see answer by Fombitz(13828)

 Question 317342: The cube root of four to the six y power Click here to see answer by Edwin McCravy(8883)