# math

posted by .

1. What pattern does the logarithmic function exhibit?
a. y = b+a(lnx)
b. y = a+b(lnx)
c. y = ax+b
d. y = axb

I think A and B both look right..I just went with B.

2. Let f(x) = log6x and g(x) = log1/2x. For all x>1, f(x)>g(x)

TRUE?

3. What is the value of the following logarithmic expression: y=log81

1.91?

4. A total of \$20,000 is invested at an annual interest rate of 6%. No matter how many years this money is invested, what is the best investment plan to earn the most money in the end?
a. Compounded quarterly
b. Compounded monthly
c. Compounded daily
d. Compounded continuously

## Similar Questions

1. ### math

how would you solve for y in this problem: ln(y-1)-ln2 = x +lnx ln(y-1)-ln2 = x +lnx Solve for y... ln[(y-1)/2]]=x + lnx take the antilog of each side (y-1)/2= e^(x+lnx) solve for y.
2. ### calc

integral of 1 to e^4 dx/x(1+lnx) 1+lnx = a => dx/x = da dx/ x(1+lnx) = da/a int of da/a = In(a) =>int of dx/ x(1+lnx) = In(1+In(x)) + C from 1 to e^4 for int of dx/ x(1+lnx) = In(1+In(1)) - In(1+In(e^4)) In(1+In(1)) - In(1+In(e^4)) …
3. ### Math

Find the coordinates of the turning point and determine wether it is minimum or maximum. y=xlnx-2x The answer in the book says the co-ordinates are (e,-e), the closest I have come is (1/lnx,-1/lnx) which works if 1/lnx=e, but I don't …
4. ### L'Hopital's rule

Find lim x->1+ of [(1/(x-1))-(1/lnx)]. Here is my work... =(lnx-(x-1)) / ((x-1)(lnx)) =(lnx-1) / (lnx+ (x+1)/x) This becomes(1/x) / ((1/x)+(1/x^2)) which becomes 1/ (1/x^2) This equals 1/2. I understand the answer has to be -1/2, …
5. ### Calculus 1

Find the derivative of y with respect to x. y=(x^6/6)(lnx)-(x^6/36) So far this is what I've gotten: y=(x^6/6)(lnx)-(x^6/36) y=(1/6)x^6(lnx)-(1/36)x^6 y'=(1/6)x^5(1/x)+lnx(x^5)-(1/6)x^5 What do I do now?
6. ### calculus

sorry to ask a second question so soon, but i'm just not getting this one. if f(x)= 3x lnx, then f'(x)=?
7. ### Calculus

Find the derivatives, dy/dx for the following functions. a. x^2y^4 = lnx + 3y b. y = ln(2x^2 + 1) c. y = ln(ãx) d. y = lnx/x e. y = x^2 lnx f. y ß log_2⁡(3x)
8. ### Math

Can someone please double check my answers. 1. What pattern does the logarithmic function exhibit?
9. ### Calculus

what is the limit as h approaches 0 of ((x+h)^pi-x^pi)/h?
10. ### math: pre-calculus

Let u=lnx and v=lny. Write the expression ln3√x/2y in terms of u and v. For example, lnx^3y=lnx^3+lny=3lnx +lny= 3u+v.

More Similar Questions