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

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Question 1017382: Which is the inverse of f(x)=√2x+5 ?
I put a link of the answer choices below because I don't want to mess the answers up. Thanks.
Link ; http://prntscr.com/9y4zyn
thanks!
Click here to see answer by Boreal(15235)

Question 1017377: If g(x) is the inverse of f(x)=√x^3+1 , which of the following is on g(x)?
Just saying that "√" above is the square root symbol. :)
A). (2,3)? B). (3,2) ? thanks

Click here to see answer by Boreal(15235)

Question 1017347: 9/11x - 3 = -5/11x - 6
x=99/14
I think I am getting lost in the computation

Click here to see answer by fractalier(6550)

Question 1017730: What is the inverse function of f(x) = 3- 1/2 x ?
Thanks ^^
Click here to see answer by FrankM(1040)

Question 1017871: Use inverse operations to write the inverse of each function.
1). f(x)=x-12/4 ,
2). f(x)=3x+1/6 .
Please copy and paste the link below to see the question please, thanks!!
http://prntscr.com/9yzoiy
Click here to see answer by Fombitz(32388)

Question 1018060: If 2x+3=10, find x?
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Question 1018804: 3/4 of a number is 3. Find the number.
Click here to see answer by FrankM(1040)

Question 1018822: Use inverse operations to write the inverse of the function. f(x)=3x+1/6
Here is a link to the function just in case : Link : http://prntscr.com/a13ypw
thanks

Click here to see answer by Boreal(15235)

Question 1019633: What is the constant of variation for this relationship? xy = -25
Click here to see answer by solver91311(24713)

Question 1020118: Please help me solve this problem: if point (a,b) lies on the graph y=f(x),what point does y=f^-1(x) contain?
Click here to see answer by josgarithmetic(39617)

Question 1021017: A pitcher's earned-run average E varies directly as the number R of earned runs allowed and inversely as the number I of innings pitched. A certain pitcher had an earned-run average of 2.92, giving up 85 earned runs in 262 innings. How many earned runs would the pitcher have given up having pitched 284 innings with the same average.
Any help with setting this up would be greats. Thanks:)
Click here to see answer by stanbon(75887)

Question 1021014: The intensity I of light from a light bulb varies inversely as the square of the distance d from the light bulb. Suppose I is 810 w/m^2 when the distance is 3 m. How much farther would it be to a point where the intensity is 160 w/m^2.
Click here to see answer by Theo(13342)

Question 1022651: Please help with, If f(x)=5x^3-7 then f^-1(x)= I have worked out (x+7)/3)1/5 but this is showing as not correct. Thank you in advance.
Click here to see answer by josgarithmetic(39617)

Question 1022638: How do i find the inverse of f(x) = 1/2 (x-2)� +3

Click here to see answer by robertb(5830)

Question 1023165: The next number in the series 10, -5, 25, -35, 85, -155 is:

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Question 1024031: Find the inverse of g(x)=-2x+4
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Question 1024687: what is the reciprocal of 133
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Question 1025288:
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Question 1026212: The function f is given below. If f and g are inverse functions, find g(x).
f(x)=x^3-5
A) x+15
B) x^(1/3) +5^(1/3)
C) (x-5)^(1/3)
D) (x+5)^(1/3)
E) (x+5)^3
F) None of the above
Click here to see answer by robertb(5830)

Question 1026643: Given the function f(x) = (x-13)^2 , where x is less than or equal to 13 find the domain and inverse
Click here to see answer by josgarithmetic(39617)

Question 1026641: Given the one to one function f(x)= x^1/3 +4 find f^-1(x)
Click here to see answer by robertb(5830)

Question 1026642: Given the function f(x)=x^2-5, where x is greater than or equal to 0 find the inverse and its domains
Click here to see answer by solver91311(24713)

Question 1026640: Given the one to one function f(x) = (x-4)^3
Click here to see answer by FrankM(1040)

Question 1027965: seven less than four times a number is equal to the number plus eight

Click here to see answer by EdenWolf(517)

Question 1029918: How do I figure this problem using inverse operation?
A+14=27
Click here to see answer by rothauserc(4718)

Question 1031580: The product of two numbers is 1. If one of the numbers is 2 2/3, what is the other?
Click here to see answer by ikleyn(52781)

Question 1032475: Jeff can read 3/4 of a book in 4 hours. How much can he read in 1 hour?
Click here to see answer by jim_thompson5910(35256)

Question 1032601: Im so lost with this worksheet I have to do please help!
It says you and your friend see kids playing on a seesaw. The two kids are balancing without their feet touching the ground. Your friend says there is no way that a mother and daughter could do the same thing. Use what you know about the different types of variation to figure out how a mother and child could balance. The values gave to me are
Weight Distance
120 100
150 80
200 60
300 40
400 30
Write an equation that models your data. Use variables of weight, W, and distance, D. (You will have to use one of your data points to find your constant of variation) Please write the general form of variation and the constant of variation and the final equation.
The second question is The lever tool helps ring values that will balance your seesaw but it has a limited range of precision. Use your graph to estimate a coordinate (W,D) that balances your seesaw. please show correct substitution and verification I really don't get this at all

Click here to see answer by Edwin McCravy(20055)

Question 1033962: f(x)=(4x+7)/(3x-6)
Click here to see answer by josgarithmetic(39617)

Question 1034435: What is the inverse of f(x)= x/3x+1
Click here to see answer by stanbon(75887)

Question 1034903: sort of a calculus question... Find the derivative of the inverse function (f^-1)'(a) if f(x)=(e^x)+x and a=1. I've been stuck on this problem for over an hour now. I figured you should find the inverse before the derivative but I'm having trouble with that. I've tried taking the natural logarithm of both sides. I can't get x by itself. Even when I try to use other logarithm rules. I also asked my classmates and they are stuck too.
Click here to see answer by Theo(13342)

Question 1034973: Q-1) Multiplicative inverse of 30 mod 8
Click here to see answer by solver91311(24713)

Question 1034971: Q-1) Additive inverse of 35 mod 6

Click here to see answer by fractalier(6550)

Question 1034971: Q-1) Additive inverse of 35 mod 6

Click here to see answer by solver91311(24713)

Question 1035565: Based on data from June 2006, the forecast for maximum 5-day snow runoff volumes for the American River at Folsom, CA, can be modeled by
v = f(t) = −2.606t + 131.8
thousand acre-feet, where t is the number of days since the end of May 2006.That is, the model forecasts the snow runoff for the 5-day period beginning on the selected day of June 2006. Find the inverse function.
f −1(v) =

Determine the value of f^ −1(61.7).
(Round your answer to two decimal places.)
f^ −1(61.7) =

Interpret the real-world meaning of the result.
The snow runoff volume is acre-feet days after the end of May, 2006.
Click here to see answer by Theo(13342)

Question 1037477: Inverse of (5x-1)/(x+4)
Click here to see answer by josgarithmetic(39617)

Question 1037522: Last Friday, Formax cinemas sold a total of 170 movie tickets. Tickets can be bought in
one of 3 ways : a child admission costs $5, student admission is $6 and regular
admissions are $8.50. Proceeds totaled $970. The number of child tickets sold was
double that of student tickets.
Write a system of equations that can be used to find the number of each type of tickets
sold. You may use any method (Crammers rule, Inverse matrix, ERO�S) to solve the
system of equations.
Click here to see answer by josgarithmetic(39617)

Question 1038263:
PLEASE I don't know how to solve this problem.
5x + 12 - 3x = -2x - 13 - x =
Click here to see answer by Alan3354(69443)

Question 1038659: f(x)=-2x+7
Click here to see answer by ikleyn(52781)

Question 1038660: What is the inverse of:
f(x)=-2x+7
Click here to see answer by josgarithmetic(39617)

Question 1039105: The length (L) of a rectangle of fixed area varies inversely as the width (W).If the length of the rectangle is 8 ft when the width is 5 ft, find the length of the rectangle when the width is 4 ft.
Click here to see answer by rfer(16322)

Question 1039120: If h(x) is the inverse of f(x), what is the value of h(f(x))?
Click here to see answer by solver91311(24713)

Question 1039167: which statement could be used to explain why f(x) = 2x-3 has an inverse relation that is a function?
a) The graph of f(x) passes the vertical line test
b) f(x) is a one-to-one function
c) The graph of the inverse of f(x) passes the horizontal line test
d) f(x) is not a function
Click here to see answer by Boreal(15235)

Question 1039161: If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x))?
How do I know what the graph of f(g(x)) would look like?
Click here to see answer by josgarithmetic(39617)

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