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Question 251441: Hey, I was looking for some help, it's really urgent. Thanks.
1. Given the function f(x)=sinx and g(x)= x. Determine the domain of the combined function y=f(x)+ g(x).
2. Given the function f(x)=2^x and g(x)= log(1-x). Determine the domain of the combined function y=f(x)g(x).
3. Given the function f(x)= cos(x) and g(x)= x^2-5x-6. Determine the domain of the combined function y=f(x)/g(x).
4. Given the function f(x)=3^x and g(x)= sinx. Determine the domain of the combined function y=f(g(x)).
5. Given the function f(x)=2^x and g(x)= logx. Determine the RANGE of the combined function y=f(x)g(x).
6. Given the function f(x)=x^2-9 and g(x)= x^2-5x+6. Determine the equation(s) of the vertical asymptote(s) of the y=f(x)/g(x)
Help would be much appreciated, Thanks so much.
Click here to see answer by richwmiller(17219)  |
Question 252203: What is the vertex of the graph of y = |2x - 3| - 5?
The answer to the question is (-1, 4). Absolute value of 2x-3=5 is (4) and absolute value of 2x-3=-5 is (-1). If you graph the equation you will see that the graph v's at (-1, 4).
Click here to see answer by morganjd(5) |
Question 252218: Let W be all the words in English. A relation L is defined from W to the positive integers that associates each word with the number of letters in the word. For example (L)the = 3 since the word the has three letters.
(a) What pairs in L have second coordinate 1?
(b) Is this relation a function? Explain your answer.
For (b) I do not believe it is, but that's just a wild guess from the little knowledge I know about this topic. Anyone's help on this would be greatly appreciated!
-P.M.
Click here to see answer by jim_thompson5910(35256) |
Question 252476: The half-life of a certain radioactive material is 85 days. An initial amount of the material has a mass of 801 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 10 days. Round your answer to the nearest thousandth.
Click here to see answer by drk(1908) |
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