Tutors Answer Your Questions about Functions (FREE)
Question 156602: Hi, can you help,
.
Greatest Integer Function
.
I asked a question a few minutes ago
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I was taught that if it was (-2.1) it would be (-3)(one to the left of it) can you please confirm
.
Thanks ahead of time, Levi
Click here to see answer by stanbon(75887) |
Question 156466: 1. Find the equation of the line that has the given characteristics.-Slope (-1/4) passing through the point (5,4)?
2. Find the center and the radius of the circle (x+2)(squared)+y(squared)=9?
3. Is the relation xy=5 a function within the domain (-5,1)?
4. There was a man who was about to take his internet company public. He owned 5% of the 900,000 shares of stock that were issued by the company when the company was first formed. the board of directors decided to reward him by issuing additional stick so that he would then own 10% of the company. How many shares of stock should be issued and then rewarded to him?
Click here to see answer by mizjoice(22) |
Question 156686: The problem is: Evaluate and find the domain. f(x)=1/x^2-9 for x=4,a-5
I am able to evaluate and came up with f(4)=1/7 and f(4)=1/a^2-10a+16. What I don't understand is how to find the domain. I know my book says the answer is: x is not equal to 3, and x is not equal to -3. I just don't know how the domain came to be this, I don't understand how to find the domain. Please help.
Click here to see answer by mangopeeler07(462) |
Question 156686: The problem is: Evaluate and find the domain. f(x)=1/x^2-9 for x=4,a-5
I am able to evaluate and came up with f(4)=1/7 and f(4)=1/a^2-10a+16. What I don't understand is how to find the domain. I know my book says the answer is: x is not equal to 3, and x is not equal to -3. I just don't know how the domain came to be this, I don't understand how to find the domain. Please help.
Click here to see answer by jim_thompson5910(35256) |
Question 157489: Hi, I need help getting the domain and range(or just the domain) of this piecewise-defined function f(x)
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f(x) = { x - 3, }
........ { , }
........ { 20, x > 12 }
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Please help me with finding the domain and range of the function, Please use interval notation
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Thanks ahead of time,Levi
Click here to see answer by gonzo(654) |
Question 157663: Alright, I've got one last question. I keep getting half of what the book says the answer is. It seems like such a simple problem, but for some reason I just can't get an answer that matches the books! It's a word problem:
Harold Johnson lives on a four-sided, 50,000-square-foot lot that is bounded on two sides by parallel streets. The city has assessed him $1,000 for curb repair, $2 for each foot of property bordering on these two streets. How far apart are the streets?
Click here to see answer by Fombitz(32388)  |
Question 157686: Hi, can you please help, can you please help with this piecewise defined function
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Piecewise defined function
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f(x) = { x - 4, }
.........{ 2x + 3, }
.........{ 36, }
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I think the domain is ( , )
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I think the range is ( , ] U ( , ] U { }
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Is this domain, and range right? Can you please confirm? Please use interval notation, just like what I used for the domain and range
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Thanks ahead of time, Levi
Click here to see answer by MathLover1(20849)  |
Question 157777: Domain/Range: Can you please provide a step by step explanation using the greater and less than signs.
1) Tom has $8.00. He wants to buy oranges which cost $0.75 a piece.
2) Anna earns $6.50 per hour at her job. She can work up to 18 hours per week.
Thanks
Click here to see answer by checkley77(12844) |
Question 158161: I have been trying to solve the following problem for 2 days:
5x-9+2x=3x+23-4x
The answer is suppose to be x=4; but I get 14 or 6 and I am not sure what I am doing wrong. Please help!
Thank you,
Cheryl
Click here to see answer by atique.ah(27) |
Question 158435: The function, p(d)=1+d/33, gives the pressure, in atmospheres (atm), at a depth d in the sea (d is in feet). Note that p(0)=1 atm, p(33)=2, and so on. Find the pressure at 150 ft.
The pressure at 150 feet is ____ atm.
Click here to see answer by nerdybill(7384)  |
Question 158479: Find the domain of the following:
1.f(x)=4.5e
2. g(x)=2^x Show your work and explain how you obtained your answer
3. h(x)=-e^x
Description of transformation
Equation(s) for the Horizontal Asymptote(s).
y-intercept in (x,y) form:
Click here to see answer by stanbon(75887) |
Question 158597: The function H described by H(x)=2.75x+71.48 can be used to predict the height, in centimeters, of a worman whose humerus (the bone from the elbow to the shoulder) is x cm long.
Predict the height of a woman whose humerus is 34 cm long.
Click here to see answer by vleith(2983) |
Question 158599: The function, p(d)=1+d/33, gives the pressure, in atmospheres (atm), at a depth d in the sea (d is in feet). Not that p(0)=1 atm, p(33)=2, and so on. Find the pressure at 150 ft.
The pressure at 150 ft is ____ atm.
Click here to see answer by vleith(2983) |
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