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Question 344844: finding the difference quotient
f(x+h)-f(x)/h
g(x)=3sqrt of x

I can set it up but i can't get the right answer
3 sqrt x+h - 3sqrt of x/ h

Click here to see answer by stanbon(75887)

Question 344895: on a map,1 centimeter representsn80 kilometers.how many centimeters represent 280 kilometers
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Question 344897: Find the domain of the rational functions:
f(x)=3x-8/4x+20
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Question 344909: Find the LCD
5/x-6,7/x^2-12x+36
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Question 344910: Find the LCD
5/7ab^5,2/7a^3b^3
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Question 344907: Perform the indicated operation. When no operation is indicated, simplify the rational expression completely.
10m^4/9a^2*3a^2b
Click here to see answer by stanbon(75887)

Question 344908: Perform the indicated operation.
3x^2-5x/18x-30
Click here to see answer by user_dude2008(1862)

Question 344927: Solve the equation and check the solution if there is no solution say so
5/4x+2=1/x
Click here to see answer by stanbon(75887)

Question 344932: Solve the equation and check the solution if there is no solution say so
4-8x/x+1+8/x+1
Click here to see answer by stanbon(75887)

Question 344942: Solve the equation and check the solution if there is no solution say so
4-8x/x+1=8/x+1
Click here to see answer by Fombitz(32388)

Question 344936: Factor completely
[5.7.1] 2x^2+20x+50
Click here to see answer by Fombitz(32388)

Question 345511: f(x) = 11x - 5x2 + 4
find f(-4)
The more I read how my lesson explains to solve this the more confused I get. If anyone can help explain it I would greatly appreciate it.
Click here to see answer by mananth(16946)

Question 345442: does x+8=y^2 define y as a function of x?
Click here to see answer by Fombitz(32388)

Question 345735: THe perimeter of a rectangle is 210 meters . How do i express the area as a function of the length, and how do I state the domain of the function.
THis is what I have so far
A=L*W
A=X(105-X) 210/2=105
domain is 0
Click here to see answer by solver91311(24713)

Question 345758: Find the indicated outputs forf(x)=2x^2 -5x
f(0)=
f(-1)=
f(2)=
Thanks
Tammy
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Question 345761: what is y=3x-1? domain 1,2,3,4,5
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Question 345986: Answer the question and solve the problems below. Make sure you show all your work so you can get partial credit even if you get the final answer wrong.
1. What is a system of equations?
2. Solve for X and Y in the following problems using either substitution or elimination methods. Make sure you show all your work so you can get partial credit even if your final answer is wrong.
a. X + Y = 10 , 3X + Y = 12
b. 2X + 5Y = 19 , 3X + 3Y = 15
c. 4X + Y = 22 , 2X + 3Y = 16
d. 12X + Y = 174 , 8X - 2Y = 36

3. Suppose Bob owns 2,000 shares of Company X and 10,000 shares of Company Y. The total value of Bob's holdings of these two companies is $372,000.
Suppose Frank owns 8,000 shares of Company X and 6,000 shares of Company Y. The total value of Franks holdings of these two companies is $400,000.
a. Write equations for Bob and Frank's holdings. Use the variables X and Y to represent the values of shares of Company X and Company Y.
b. Solve for the value of a share of Company X and Company Y. Show your work so you can get partial credit even if your final answer is wrong.

4. Solve for X, Y, and Z in the following systems of three equations using either substition or elimination methods:
a. X + 2Y + Z = 22
X + Y = 15
3X + Y + Z = 37
b. 10X + Y + Z = 603
8X + 2Y + Z = 603
20X - 10Y - 2Z = -6
c. 22X + 5Y + 7Z = 12
10X + 3Y + 2Z = 5
9X + 2Y + 12Z = 14

Click here to see answer by JBarnum(2146)

Question 346009: find the inverse of following functions:
(a) f(x)=(x^3 + 5)/(x-3) , x≠3

(b)f(x)=(x^3 - 8)/(x^2 - 4) , x≠�2
Click here to see answer by jsmallt9(3758)

Question 346186: what is the domain for the following functions :
(11x+3)/(x-7)

sqr(8x^2) +12

5(x-1)^5/2
Click here to see answer by Fombitz(32388)

Question 346211: Is f(x)=8x^(5/4) even, odd, or neither?
Click here to see answer by edjones(8007)

Question 346271: let g be the function defined by the equation below
g(x) = -x^2+6x

find the following :
g(a+h)
g(-a)
g(sqr(a))
a+g(a)
1/g(a)
Click here to see answer by nyc_function(2741)

Question 346473: 7/x^2-x-6+5/x-3
Click here to see answer by mananth(16946)

Question 346480: -2/ab^2 / 5/a
Click here to see answer by Fombitz(32388)

Question 346483: 1/3y+1/6y / 1/2y+3/4y
Click here to see answer by TiaBearr(3)

Question 346562: Use the following table to …nd the slope and y-intercept of the graph
of g: Explain your reasoning.
x -2 0 3 7
g(x) 3 1 -2 -6
Click here to see answer by Fombitz(32388)

Question 346607: f(x+7)=x�+8x-1
Click here to see answer by Alan3354(69443)

Question 346806: Find the domain of the function.
-9p/p+4
Click here to see answer by haileytucki(390)

Question 346790: j(X)=2x J(0.75)=? J(-4)=-8
Click here to see answer by haileytucki(390)

Question 346933: find the domain of R(x)=-2-5x/x^3-5x^2-6x
Click here to see answer by haileytucki(390)

Question 346933: find the domain of R(x)=-2-5x/x^3-5x^2-6x
Click here to see answer by jsmallt9(3758)

Question 346970: find the domain of the given function h(x)=1/x+9
Click here to see answer by nyc_function(2741)

Question 347110: I am really not understanding how to work this problem
f(x) = 15x - 12
g(x) = -15x2 + 14x - 10
find g(g(7))
Any help would be greatly appreciated!!!
Click here to see answer by stanbon(75887)

Question 347046: Find the domain of the given function:
h(x)=1/x+9
Type your answer in interval notation
Click here to see answer by CharlesG2(834)

Question 347142: If the limit as x approaches 1 is (f(x)-8)/(x-1) = 10
FIND the limit of f(x) as x approaches 1
Click here to see answer by CharlesG2(834)

Question 347250: f(x)=3x-1/(x+5)(x-7)
- find the domain
Click here to see answer by nyc_function(2741)

Question 347302: Hi, Im doing functions, and im just STUCK! Were supposted to plug in 9, but then what? thanks!
f(x)=7x+-15;f=9
Click here to see answer by edjones(8007)

Question 347533: inverse of (5x+3)divided by 7
Click here to see answer by fractalier(6550)

Question 347654: Please help me. I tried the only things that I thought would work on this problem and they were wrong. I tried 1 as the solution and 0 because anything else would make the whole thing under the sqrt a negative number right. It has me completely stumped.
Let the function f be defined by
f(x) = \sqrt{-7 x + 8}.
Then x is in the domain of f provided x is less than or equal to _____.
Hint: There is no real number that is the square root of a negative real number.

Click here to see answer by Fombitz(32388)

Question 347652: I do not understand this. I read all about functions but it never talks about the double parentheses. Please help me with this. I tried a couple different thoughts but they were wrong.
(1 pt)
Let the function f be defined by
f(x) = 4 x + 4.
Then f(f(9)) =____ and f(f(10)) = ____.
Hint: As always, first figure out what's inside the parentheses.
Click here to see answer by Fombitz(32388)

Question 347663: Determine the domain and the range of the function g(x)=(4x-4)/(5x-30).
Click here to see answer by Fombitz(32388)

Question 347448: {(x,y): y=2x-1}
Click here to see answer by nyc_function(2741)

Question 347446: {(x,y): y=-5x+3}
Click here to see answer by nyc_function(2741)

Question 347344: f(x) = x2 - 8x +12/-5x
can you show me how to find the 0's of the funtion?
Click here to see answer by nyc_function(2741)

Question 347859: One leg of a right triangle is twice as long as the other. Write the length of the hypotenuse as a function of the length of the shorter leg.
Click here to see answer by mananth(16946)

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