Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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Question 175651: g(x) = -x + 5 for -1 and 4

Click here to see answer by jim_thompson5910(35256)

Question 175643: h(x) = 0.5x - 7 for -1 and 4

Click here to see answer by Mathtut(3670)

Question 175641: g(x)-x + 5 for -1 and 4

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Question 175652: h(x) = 0.5x - 7 for -4 and 3
Click here to see answer by Mathtut(3670)

Question 175721: 27^3 - 8Y^3
Click here to see answer by stanbon(75887)

Question 175762: Decide whether each relation is a function. Use a complete sentence in your answer.
Relations: (1,3), (2,-4), (3,-7), (1,-9), (4,-11)
Click here to see answer by Fombitz(32388)

Question 175716: 64^3+1
Click here to see answer by Alan3354(69443)

Question 175992: Soybean meal is 12% protein, cornmeal is 6 % protein. How many punds of each should be mixed together in order to get 240lb mixture that is 9% protein. Ive been stuck on this problem for 2 days. i cannot even vizualize it. I am sitting with my daughter at the hospital for 3 days now, and some of my worries of her are probably getting in my way, but this problem just is not getting past me reading and re reading it. We did one similar to this, just different numbers several weeks ago, but I just cant even get started. can you help me?
Click here to see answer by Mathtut(3670)

Question 175956: What similarities and differences do you see between functions and linear equations?
Are all linear equations functions?
Is there an instance when a linear equation is not a function? Support your answer.
Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.

Click here to see answer by Mathtut(3670)

Question 176267: I have a problem that reads:
If f(x)=x^2 and g(x)=x-3, find (f (open circle) g)(0)
Could you please help me figure this out?
Click here to see answer by stanbon(75887)

Question 176268: If f(x)=4-3x, find f^(-1)(-41)
Click here to see answer by EMStelley(208)

Question 176360: If f(x)=x+5 and g(x)=|x|, find (f o g)(-4) and (g o f)(-4)
thank you for your help.
Click here to see answer by Fombitz(32388)

Question 176359: Help, thank you in advance for helping me find the domain and (f o g)x and (g o f)x
f(x)= square root of (x+1), g(x)=5x-2
Click here to see answer by Mathtut(3670)

Question 176383: Approximate to the nearest tenth, the real root of the equation f(x) = x^3 - 4 = 0
Click here to see answer by stanbon(75887)

Question 176403: I need help on a a problem that says If f(x)=x^2 and g(x)=x-3, find (f(open circle)g)(0).
I'm not sure how else to write the open circle thing, but could you please help me and explain this to me?
Click here to see answer by stanbon(75887)

Question 176408: What similarities and differences do you see between functions and linear equations Are all linear equations functions? Is there an instance in which a linear equation is not a function? Support your answer. Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.

Click here to see answer by Mathtut(3670)

Question 176411: Can you please help me with finding f^(-1)(-41), if f(x)=4-3x i think that means the inverse, I'm not sure, ?
Click here to see answer by jim_thompson5910(35256)

Question 176358: Thank you in advance for helping me with this problem. I need to find the
(f o g)x and (g o f)x and the domain for each.
f(x)=2x^2-x-1, g(x)=x+4
Click here to see answer by Fombitz(32388)

Question 176548: Use the following function to answer all parts of the question:
g(x) = 3x+1 / x-1
A.)Evaluate the function at the given values. Show complete work. ANswers must be simplified completely.
i.) g(0)
ii.) g(2/3)
B.) Find x if g(x)=2
-------------------
I am getting these answers and they are not adding up:
A)
i.) -1
ii.)-9
B) 2
Thank you for your help!
Click here to see answer by jim_thompson5910(35256)

Question 176630: If the function G(x) = (x - 8)2 + 6 has the same shape as F(x) = x2 + 6, how far to the right of F(x) is G(x) shifted?
Click here to see answer by gonzo(654)

Question 176640: 1.Given f(x) = 5x+4 and g(x)= 3x-8: find f g
2.Find the distance between the pair of points (-1, -4) and (-5, -7)

Click here to see answer by Fombitz(32388)

Question 176705: f(x) = 6 - x for 0 and 6

Click here to see answer by solver91311(24713)

Question 176704: h(x) = 1.5x - 2 for -2 and 4
Click here to see answer by solver91311(24713)

Question 176702: f(x) = -3x - 1 for -1 and 7
Click here to see answer by solver91311(24713)

Question 176701: g(x) = -2x + 5 for 0 and 3
Click here to see answer by solver91311(24713)

Question 176699: f(x) = -x + 3 for -4 and 4
Click here to see answer by solver91311(24713)

Question 176696: evaluate f(x)=3x - 8 for {-2,3,6}. Which set of numbers is the domain and which set of numbers is the range?

Click here to see answer by solver91311(24713)

Question 176708: f(x)= x^2-5x, find f(5)
How would we solve this?
Click here to see answer by stanbon(75887)

Question 176709: f(x) = 3x -8 for {-2, 3, 6}
Click here to see answer by solver91311(24713)

Question 176872: if f(x)=7,find f(8)

Click here to see answer by Mathtut(3670)

Question 176875: Solve and check the following problem using the substution method.
x=1/5Y (this is one over 5)
3x+2y=26
Click here to see answer by Alan3354(69443)

Question 176865: A rectangle has perimeter 18m. Express the area of the rectangle as a fundtion A(l)of the length l of one of its sides.
Click here to see answer by Fombitz(32388)

Question 176971: y=3x-4
Click here to see answer by checkley75(3666)

Question 177006: If f(x)=3x+1, u(x)=square root x, and h(x)=1/(x+1), find h(f(u(x)).
Click here to see answer by Fombitz(32388)

Question 177006: If f(x)=3x+1, u(x)=square root x, and h(x)=1/(x+1), find h(f(u(x)).
Click here to see answer by rapaljer(4671)

Question 176999: Find the domain and range of this function f(x)=1/squareroot of (x-4)

Click here to see answer by Fombitz(32388)

Question 176999: Find the domain and range of this function f(x)=1/squareroot of (x-4)

Click here to see answer by rapaljer(4671)

Question 177116: Could someone check my work to see if I am looking at this from the right perspective.
Consider two identical six sided dice with from one to six dots on each side with no two sides containing the same number of dots.
a. Question: How many possible outcomes (sum of dots) are there if you throw the two dice on the board?
Answer: 12
b. Question: If you throw both dice on a table what are the chances that the sum of the dots on the two dice will be equal to 6?
Answer: 1/36
c. same as in (b) but for the sum of 7?
Answer: {(1,6),(2,5),(3,4),(4,3),(5,2),(6,1)} 6/36=1/6

Click here to see answer by stanbon(75887)

Question 177234: Solve y=-1/2x+3 with domain is {2,4,6}
Click here to see answer by Mathtut(3670)

Question 177309: If f(t)=2t�-4t-1, find f(2)

Click here to see answer by jim_thompson5910(35256)

Question 177308: Can you state the domain and graph the following:
f(x)=the square root of x
Please explain the answer.
Click here to see answer by Mathtut(3670)

Question 177506: How do you find the quadratic equation with integral coefficients and with roots 7 � i?
Click here to see answer by Mathtut(3670)

Question 177521: For the function f, y= F(x) is inversely proportional to x, where x > 0. If f(4)=64. and the value of f(x)=32, what is the value of x?
Click here to see answer by Mathtut(3670)

Question 177730: f(x) = 3x__ and g(x) = __2__
X+2 X+2
Should read 3x over x+2 and 2 Over x+2
Find (f + g) (2)
I know I multiple (x) (2)
Where do I go from here?
What is the domain of f+g?
I�m really unsure about this problem.

Click here to see answer by Mathtut(3670)

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