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

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 Algebra: Inverse operations for addition and multiplication, reciprocals Solvers Lessons Answers archive Quiz In Depth

 Question 615140: Find The Inverse Of The function F(x)=1/2√(x-3)=5 Thank You Click here to see answer by asuar010(324)

 Question 615591: if c varies inversely as the square of d and d=4 when c=0.2, what is the constant of variation Click here to see answer by stanbon(57290)

 Question 616249: Find the inverse of the following function. Find domain, range, and asymptotes of each function. f(x)=ln(x+1)+1 I tried to solve this but i got mixed up. Here is what I had. y=(x+1)+1 x=(y+1)+1 x-1=(y+1)-1 x-2=y x-2=f^-1(x) My teacher noted that I didn't add the ln to the equation upon solving. Would it be x=ln(y+1)+1 Can someone please help me. Thanks Also for the Domain, I'm guessing that I solve x+1=0 x=-1 so the domain is (-1,inf) I thought that there cannot be a domain for x<0. So confused Click here to see answer by jim_thompson5910(28549)

 Question 616721: This final one completely throws me. Make x the subject. f= p sqrt(g-x) Thank you Click here to see answer by scott8148(6628)

 Question 616717: I am having trouble with inverse operations in having to make x the subject. I have three questions in my workbook. First question - make x the subject. v= qx^2/t+p I tried doing it but I am not sure if I have my working right. My end answer was that it is x= sqrt(v-pt/q) Any help would be appreciated thank you. This is the one that I understood the most. The other two absolutely blow my mind. Thanks :) Click here to see answer by Alan3354(30993)

 Question 617357: How do I change this equation into slope-intercept form? Click here to see answer by scott8148(6628)

 Question 618754: Evaluate the following function or inverse; then write the ordered pair. f(x)=3x+1 and f^-1=x+1/3 f -1(1) =? ( , ) Click here to see answer by ewatrrr(10682)

 Question 619431: what numbers do you multiply by 300 to get 603. Click here to see answer by jim_thompson5910(28549)

 Question 623825: If f(x)= 2/(x-1), then f^-1(x)= ? The way I tried solving this problem is by switching the x and y, and solving for y. I ended up with the answer f^-1(x)=(2+x)/x. Can you help me decide if this is the right answer, and let me know where I went wrong if this answer is wrong. Click here to see answer by edjones(7569)
 Question 623825: If f(x)= 2/(x-1), then f^-1(x)= ? The way I tried solving this problem is by switching the x and y, and solving for y. I ended up with the answer f^-1(x)=(2+x)/x. Can you help me decide if this is the right answer, and let me know where I went wrong if this answer is wrong. Click here to see answer by lwsshak3(6490)

 Question 630066: How many possible combinations are there for having 36 cents, using pennies, nickels, dimes, and quarters? Click here to see answer by AnlytcPhil(1276)

 Question 632466: I am trying to find the inverse equation of F(x)= (2-x)/(5x) I get x=(2-y)/(5y) multiply 5y through to get (5yx)=(2-y) I divide the whole equation by y to get (5x)=(2/y)-(y/y) (y/y equaling 1) so now my equation is 5x=(2/y)-1then take over the one to get 5x+1=2/y I am not sure how to get y on its own after that please help thank you Click here to see answer by Alan3354(30993)

 Question 636505: Can u show me step by step to solve this problem ? 3x(2 x 4^3) divided by 4 Click here to see answer by richwmiller(9135)

 Question 636947: Find the equivalent number on the 12-hour clock. -22 Click here to see answer by babygirlwalton(3)
 Question 636947: Find the equivalent number on the 12-hour clock. -22 Click here to see answer by jim_thompson5910(28549)

 Question 636948: Solve the inequality: x + 14 < -11 Click here to see answer by babygirlwalton(3)
 Question 636948: Solve the inequality: x + 14 < -11 Click here to see answer by jim_thompson5910(28549)
 Question 636948: Solve the inequality: x + 14 < -11 Click here to see answer by lenny460(764)

 Question 637768: Can someone help me with this one? Not even sure how to write it out. Thanks! 7 – 10z > 5 Click here to see answer by stanbon(57290)

 Question 638456: Show that the inverse of the function x^2 - 4x + 3 is 2 + sqrt(1+x) Click here to see answer by lwsshak3(6490)

 Question 640801: If Y = 5 when x = 2, find Y, when x is 4 anyone know this I WOULD LOVE ANY HELP! :) Click here to see answer by MathLover1(6625)

 Question 640807: Y is inversely proportional to the cube of x. If Y = 5 when x = 2, then k = 20 true or false? once again any help will be loved :) Click here to see answer by MathTherapy(1422)

 Question 641323: My question is not about solving homework. Next week is midterms and I have a HORRIBLE grade in pre-algebra. We are having a final test over reciprocals. I need a LOT of help. So basically what you do is you swap the number over. So if the division problem is 1/3 divided by 1/2 you would be solving for: 1/3 x 2/1 right? and the answer would be 2/3. Am I correct? Thank you so much for reading. Click here to see answer by ankor@dixie-net.com(15647)