Questions on Algebra: Inverse operations for addition and multiplication, reciprocals answered by real tutors!

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Question 892069: The one to one function g is defined by g(x)= 5x/x-9
Find g-1 x and domain and range of g inverse x, using interval notation.
I think inverse is 9x/x-5
Click here to see answer by josgarithmetic(39617)

Question 892620: f(x)=10x^3
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Question 892690: F(s)=s^2+12
Click here to see answer by Fombitz(32388)

Question 893516: If f(-5)=-2 and g(x)= -2*f(x), what point can you determine on the graph of g?
I've tried plugging in both -5 and -2, this is my first time doing this and i know what in doing it completely incorrect. Can you help?

Click here to see answer by josgarithmetic(39617)

Question 893842: 9y-5x=3;x+z=1;z+2y=2
Click here to see answer by Fombitz(32388)

Question 894885: what is the multiplicative inverse of negative seventeen over thirty nine
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Question 899800: please help to
complete the following series D,F,G,H,J,K,L,M,N,?
Click here to see answer by Fombitz(32388)

Question 900829: The value of y is 11 when the value of x is 5, find the value of y when x is 8.
Click here to see answer by josgarithmetic(39617)

Question 902482: Name the domain and range of the inverse of the function. y = 2x - 1

Click here to see answer by josgarithmetic(39617)

Question 904481: i^-39
Click here to see answer by ewatrrr(24785)

Question 905476: What is the inverse of the function f(x)=x^1/3+1
I also need to find the domain and range off and f^1
Any help would be greatly appreciated.
Click here to see answer by ewatrrr(24785)

Question 907764: 3. A circle passes through A(-3,2) and has center O(1,5).
(i) Find the radius of this circle.
(ii) Use (i) to find the circle�s equation.
(iii) Graph this circle. Expand your scale wisely to make it clear on graph paper.
(iv) Label A and O with their coordinates.
(v) The circle passes through B(-2,b). Find b.
(vi) Add B to your graph and label it with its coordinates.
(vii) Draw the tangent line to the circle at B.
(viii) Find the equation of the line you just drew.
(ix) The line you just drew passes through the point E(100,c). Find c.
(x) Exactly how far is E from the center of the circle?

Click here to see answer by ewatrrr(24785)

Question 907762: 2. The curve f(x) = Ax^3 + Bx + 3 passes through the points F(1, -4) and G(-2,5).
(i) For point F, write the equation that the curve must satisfy.
(ii) Do the same for point G.
(iii) Solve (i) and (ii) simultaneously to find the values of A and B. Show how great you are at fractions by NOT using decimal approximations.
(iv) Use (iii) to write the equation of this curve.
(v) The curve passes through H(-1, d). Find d.
(vi) Find the average rate of change of the secant line HF.

Click here to see answer by josgarithmetic(39617)

Question 908336: Find the inverse of f(x)=3x^3-12
Click here to see answer by stanbon(75887)

Question 908618: F(x)=x-5
Xt4
Click here to see answer by Alan3354(69443)

Question 909335: 5-2x=12
Click here to see answer by MathLover1(20850)

Question 910191: x^3+e^x
Click here to see answer by Alan3354(69443)

Question 911649: H-13=5
Click here to see answer by jim_thompson5910(35256)

Question 912163: Write the reciprocal of 1/a+1/c
Click here to see answer by ewatrrr(24785)

Question 912521: Find the opposite reciprocal of the solution of 5x-7 = 31
Click here to see answer by Fombitz(32388)

Question 912766: how do you find the equation for these points {4,-8} {-3,1}
Click here to see answer by jim_thompson5910(35256)

Question 915429: A / B * C = D
WHAT WOULD BE THE EQUATION TO FIND THE VALUE OF C
Click here to see answer by ewatrrr(24785)

Question 915429: A / B * C = D
WHAT WOULD BE THE EQUATION TO FIND THE VALUE OF C
Click here to see answer by MathLover1(20850)

Question 915428: A / D * C = D
WHAT WOULD BE THE EQUATION TO FIND THE VALUE OF C
Click here to see answer by ewatrrr(24785)

Question 918646: f(x)=x-3/x-1 State the domain for each ration function
Click here to see answer by Fombitz(32388)

Question 918859: Find the Inverse of f(x)=5x^3-2
Click here to see answer by asuar010(338)

Question 918909: Find the formula for the inverse.
f(x)=3x
f^-1(x)=
Click here to see answer by stanbon(75887)

Question 919726: John can do a piece of work in 6 hours. With the help of mary he completes the job in 4 hours. How long would mary take to finish the job working alone
Click here to see answer by ewatrrr(24785)

Question 920201: PLEASEEE HEPPP!!!
Use composition to show that f and g are inverse of each other.
g(x)=(x-8)^3+5
f(x)=^3sqrt(x-5)+8
Click here to see answer by ewatrrr(24785)

Question 920525: inverse of x/3-1
Click here to see answer by ewatrrr(24785)

Question 922853: Find an equation of the inverse relation.
8x^2+6y^2=9
Click here to see answer by josgarithmetic(39617)

Question 924006: FACTOR?
Click here to see answer by Edwin McCravy(20056)

Question 927319: given the linear function g(x)=1/2x+3
Click here to see answer by brysca(112)

Question 927864: What is the inverse of f(x)=7x-63?

Click here to see answer by jim_thompson5910(35256)

Question 928717: how do you know that 2 cannot be a solution of the equation?
3/(m - 2) + 1/(m - 1) = 1/ ( m2 - 3m + 2)
Click here to see answer by ewatrrr(24785)

Question 928716: Find the inverse of the function.
f(x) = (x - 4)/(x + 4) x does not equal -4
Click here to see answer by MathLover1(20850)

Question 928450: What's inverse of subtract 6
plz hlp
Click here to see answer by Fombitz(32388)

Question 930211: Please help me solve this: x is greater than or equal to -2

Click here to see answer by stanbon(75887)

Question 930211: Please help me solve this: x is greater than or equal to -2

Click here to see answer by MathLover1(20850)

Question 930521: how do i find the inverse of f(x)=x^3+8
Click here to see answer by MathLover1(20850)

Question 931143: What is in verse of the coefficient matrix of the equivalent matrix equation
Please help me solve this equation :
x-6y=5
-x+4y=-5

Click here to see answer by Edwin McCravy(20056)

Question 931239: determine whether or not the function is one-to-one.
f(x)=5.87
Click here to see answer by richard1234(7193)

Question 931869: 4a-2=6a+6 I'm not sure how to solve this equation. If possible, will you show me how to solve it and check it.
Thanks,
Shot213
Click here to see answer by Alan3354(69443)

Question 931937: find the inverse of the function:
f(x)= 8x-1/5
please show all the steps.
Click here to see answer by jim_thompson5910(35256)

Question 932301: Write an inequality for the sum of a number and six is greater or equal to 34
Click here to see answer by TimothyLamb(4379)

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