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

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Question 1039165: The function f(x) is shown below
x: -6,-3,2,5,8
f(x): 1,2,5,3,0
If g(x) is the inverse of f(x), what is the value of f(g(2))?
Click here to see answer by robertb(5830)

Question 1039166: The function h(x) is given below
h(x) = {3,-5),(5,-7),(6,-9),(10,-12),(12,-16)
Which of the following gives h^-1(x)?
{(3,5),(5,7),(6,9),(10,12),(12,16)}
{(-5,3),(-7,5),(-9,6),(-12,10),(-16,12)}
{(3,-5),(5,-7),(6,-9),(10,-12),(12,-16)}
{(5,3),(7,5)(9,6),(12,10),(16,12)}
Click here to see answer by robertb(5830)

Question 1039163: Which graph shows a function whose inverse is also a function?
How do I choose the right one from a picture of graphs?
Click here to see answer by Edwin McCravy(20054)

Question 1040393: Can I please have your assistance? If f(x) = 2x +1 and g(x) = x2, what is f o g? What is g o f?
Click here to see answer by Theo(13342)

Question 1040391: Can I please have your assistance? Let D be the set of all calendar dates from 4/30/1789 to 9/25/2014? Let P be the set of names of U.S. presidents. Let F be the set of names of first ladies of the U.S. Consider the following two functions pres: D arrow P where pres (d) is the name of the president of the U.S on the date d (the incumbent on inauguration days, to avoid ambiguity) and lady: P arrow F where lady (p) is the name of the first lady of the U.S. during the presidency of president p. Question: Can the composition pres o lady be defined? What about lady o pres?
Click here to see answer by robertb(5830)

Question 1040392: Can I please have your assistance? Let D be the set of all calendar dates from 4/30/1789 to 9/25/2014. Let P be the set of names of U.S presidents. Let F be the set of names of first ladies of the U.S. Consider the following two functions pres: D arrow P where pres (d) is the name of the president of the U.S on date d (the incumbent on inauguration days, to avoid ambiguity) and lady: P arrow F where lady (p) is the name of the first lady of the U.S. during the presidency of president p. Question: Which of the following functional inverses exist and which do not? pres -1, lady -1 (lady o pres) -1, (pres o lady) -1
Click here to see answer by robertb(5830)

Question 1040683: The electrical resistance of a given wire varies directly as the length. What is the resistance of 300 feet of that wire having 0.00027 ohms of resistance per foot?
Click here to see answer by ikleyn(52775)

Question 1040807: 2x+4x-2x+5y-6y-8z+15z+z

Click here to see answer by Boreal(15235)

Question 1040836: Find the inverse of (x)=2^3√x+2
Click here to see answer by Fombitz(32388)

Question 1040941: Given the function f(x)=4(x+3)-5, solve for the inverse function when x=3

Click here to see answer by stanbon(75887)

Question 1041244: Graph y=-4x^2-2 and its inverse.
Click here to see answer by josmiceli(19441)

Question 1041432: Find the inverse of f(x)=(x+4)^3
Click here to see answer by jim_thompson5910(35256)

Question 1041835: what is the multi step equation? 3(w+5)+w=5

Click here to see answer by solver91311(24713)

Question 1043254: Please i need help!
Given the set {5,6,4} and {9,7,3}.if two numbers are drawn,find the probability that their sum is greater than 11
Click here to see answer by ikleyn(52775)

Question 1043257: What is the multiplicative inverse of -2 7/33
Click here to see answer by ikleyn(52775)

Question 1043257: What is the multiplicative inverse of -2 7/33
Click here to see answer by MathTherapy(10551)

Question 1039162: Which function has an inverse that is also a function?
{(-4,3),(-2,7),(-1,0),(4,3),(11,-7)}
{(-4,6),(-2,2),(-1,6),(4,2),(11,2)}
{(-4,5),(-2,9),(-1,8),(4,8),(11,4)}
{(-4,4),(-2,-1),(-1,0),(4,1),(11,1)}
Click here to see answer by richard1234(7193)

Question 1044351: The sum of the reciprocals of two consecutive integers is equal to 11 times the reciprocal of the product of those integers.what are the two integers?
Click here to see answer by KMST(5328)

Question 1044350: When the digits of a two digit number are reversed, the resulting number is 54 less than the original number. The tens digit of the original number 4 times the units digits. What is the original number?
Click here to see answer by josgarithmetic(39616)

Question 1044358: One number is less than twice the other number.if the larger number is divided by the smaller number, the quotient is 1 and the remainder is 2. Find the numbers.(let x be the smaller number)
Click here to see answer by ankor@dixie-net.com(22740)

Question 1045580: Im having trouble being able to solve this inverse equation, y=(x+4)/x. By what we have been taught, i think i have narrowed it down to x=(y+4)/y, but i dont know where to go from there.
Click here to see answer by MathLover1(20849)

Question 1045588: inverse of y=(x+4)/(x-4), i am confused as to what to do here
Click here to see answer by ankor@dixie-net.com(22740)

Question 1045859:
How do you divide this?
Click here to see answer by MathLover1(20849)

Question 1045859:
How do you divide this?
Click here to see answer by solver91311(24713)

Question 1046198: ((1/xy)-1)/((1/x^2)-(y/x))
Click here to see answer by josgarithmetic(39616)

Question 1046694: What is the domain and range amd transformation of the equation 2f(x-4)-1
Click here to see answer by stanbon(75887)

Question 1047815: The sum of nine and the product of one and a number x
Click here to see answer by ewatrrr(24785)

Question 1047851: 16 less than three times a number is more than half of the number what is the equation written
Click here to see answer by ewatrrr(24785)

Question 1049431: Suppose that f is a linear function slope -3,4 and that f(3) =6 what value of x gives f(x) =0 round answer
Click here to see answer by stanbon(75887)

Question 1050055: 2+√6 Divided By √2 +√3
Click here to see answer by satyareddy22(84)

Question 1050584: How would you rewrite 94*86=8084 with the inverse operation
Click here to see answer by MathLover1(20849)

Question 1052755: k-2/5=10

Click here to see answer by rfer(16322)

Question 1052728: The formula to convert temperatures from degrees Farenheit to degrees Celsius is: C=5/9(F-32). Write the inverse of the function, which converts temperatures from degrees Celsius to degrees Farenheit. Then find the Farenheit temperatures that are equal to 29�C, 10�C, and 0�C.
Click here to see answer by josgarithmetic(39616)

Question 1053254: Please help me.slovw this equation (3/4-2/3)+(1/2+1/3)
Click here to see answer by Fombitz(32388)

Question 1053301: The reciprocal of -5/6 is
Click here to see answer by ikleyn(52775)

Question 1053539: 2/x +4

Click here to see answer by Fombitz(32388)

Question 1055253: Inverse of g(x) = x/(2x+4)
Click here to see answer by Fombitz(32388)

Question 1055599: Seven less than five times a number is the same as two more than twice the same number. What is the number
Click here to see answer by addingup(3677)

Question 1055807: one forth times the quantity 4 ex + 12 = 31

Click here to see answer by Alan3354(69443)

Question 1056470: Find the inverse of the following functions:
a) g(x)=(2x-3) / (4+x)

b) f(x)= sqrt -x+5+2
Click here to see answer by Boreal(15235)

Question 1056572: Use elimination to solve each system of equations. I have to show all work and write the answer as an (x,y) ordered
2x-4y=-22
3x=3y=30
Click here to see answer by ikleyn(52775)

Question 1056571: Use elimination to solve each system of equations. I have to show all work and write the answer as an (x,y) ordered
7x=4y=-4
5x=8y=28
Click here to see answer by ikleyn(52775)

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