1. E

    [SOLVED] Combining functions

    Given the graph of a function with a few clear ordered pairs. Call it f(x). Can one use those given points on the graph, to sketch (f+f)(x)? Add y values? Add x values? Both?
  2. T

    Combining Functions

    f(x) = x + \frac{1}{x^2} g(x) = \frac{1}{x} I need to do (fog)(x) and (gof)(x). I'm not getting the correct answers...I really have problems simplifying. Thanks in advanced!
  3. T

    Combining Functions question 2

    Combining functions 2 f(x) = x + 1 g(x) = x + \sqrt{x-1} I need help to solve (gof)(x).
  4. M

    Combining Functions Question 5

    A rectangle is divided into four smaller rectangles with areas of 4, 7, 15, and x. Determine the value of x.
  5. M

    Combining functions Question 3

    Given that f(xy)= f(x)/y for all real numbers x and y and f(500)=3, find f(600).
  6. M

    combining functions question 4

    Increasing x by y% gives 12. Decreasing x by y% gives 8. Deteremine the value of x.
  7. R

    combining equations... help please??? :(

    Okay I thought I was getting better at but I keep seeming to get some questions wrong!! My math teacher never seems to have time to explain either!!! Could someone pretty please tell me where I'm going wrong?? Is there something I'm not understanding please? Write an equation for x that does...
  8. R

    Combining Standard Errors

    We have a large set of data (approximates to normal distribution), which we are using to create a set of three ratios (Ra, Rb, Rc), for which we can calculate standard errors. These ratios are then being applied to a fixed survey(x), which has a known standard error, to move the date of the...
  9. Z

    combining functions part 2

    If: f (x) = 3(x+1)^2 (the last 2 means square) h(x) = 2/3 Ö(1-x) +3 (the square root is of 1-x only NOT 3) I need to figure out the signs. what is (h o f)(x)?? Thank you very much .
  10. Z

    combining functions

    I seem to run into another problem in my homework. (I could see it coming :) If: f (x) = 3(x+1)^2 (the last 2 means square) g (x) = (2/x) - 1 what is (f *g)(x) (multiplication) thank you
  11. T

    Combining the sum of the double integrals

    Hey Guys, I need help with combining this integral into one single integral. (No need to evaluate.) \int_{0}^{2} \int_{0}^{x} \sqrt {x^2 + y^2} dydx + \int_{0}^{2\sqrt 2} \int_{0}^{\sqrt {8-x^2}} \sqrt {x^2 + y^2} dydx I have drawn the images of my boundaries, but I have no clue where...
  12. L

    Combining, simplifying and factoring fractions.

    I have no idea what I'm doing as I haven't touched this topic in months. If anyone can help me, that would be great. Edit: For some reason, all of the fractions are being messed up so I'm going to post a picture of how they should look.
  13. S

    combining functions

    g(x) = 2x + 8 and f(x) = 1 / x+2 find g(f^-1(-2))
  14. J

    Combining Functions Homework Help

    The number of kidney and liver transplants in the United States between 1992 and 1996 can be modeled by K(x) = 9088.859 + 1697.717 In x kidney transplants L(x) = 2424.764 + 915.025 In x liver transplants where x is the number of years since 1990. a. Construct a model for the number of...
  15. H

    Combining log and ln?

    I have a problem about condensing logarithmic expressions with logs AND lns. Is this possible? ln 5 + 3 ln 3 - log 4
  16. S

    Algorthm for combining regions

    Within a rectangular area (a matrix M * M elements) I access several parts of it (each N * N, but N varies). Some of these parts might overlap and i don't want to access those parts (elements) a second time. I know there must be an algorithm to combine the parts I accessed already and tell...
  17. N

    Distributive Property, exponents, combining like terms, and negative numbers

    Ok, i did this problem in several methods we've been taught, but none of them reached the answer in the check your work section. As it was the last one with the given answer, and i was so far off in the answer, i'm worried about the remaining ones done in that method. heres the problem i cant...
  18. I

    Combining Vectors

    Hello, was wondering if someone could help me with a little vector maths problem please. What I need to find is the angle between two vectors that are derived from/relative to a third vector. So what I having working/understood is that theta = cos-1(“vector a” * “vector b”) where “vector a”...
  19. P

    combining like terms and solving equation.

    5x + 8 + 3x - x + 5 = 6x - 3 I am very confused about this equation can someone explain this equation step by step please. thank you
  20. P

    finding expression and combining like terms

    1. A triangle has sides 3x + 7, 4x , and 5x + 6. Find the expression that represents its perimeter. Combining like terms 2. 7(4w-3)-25w