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

Algebra ->  Algebra  -> Inverses -> Questions on Algebra: Inverse operations for addition and multiplication, reciprocals answered by real tutors!      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

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

 Question 444263: y=4x-8. Write the equation of the inverse of each given function, solved for y. Click here to see answer by edjones(7569)

 Question 446885: simpplify 2log3(x) - log 3 (x^3/6) - 1 Click here to see answer by stanbon(57967)

 Question 446590: barney chose two numbers a and b with 0 < a < b < 1. He decided to combine the numbers and wrote down a+b, b-a, a-b, a/b, b/a and ab. He saw that he had written the same number down twice and, even more surprisingly, that he had also written a second number down twice. What were his possible starting numbers Click here to see answer by richard1234(5390)

 Question 447944: solve for u log3 (u + 18) + log3 (u) = 5 Click here to see answer by stanbon(57967)
 Question 447944: solve for u log3 (u + 18) + log3 (u) = 5 Click here to see answer by Alan3354(31519)

 Question 447941: Suppose f(x) = 2^(x^2) - 5, for x >=0. find f^-1, the inverse of f. Determine the domain of f^-1. compute f^(-11). Click here to see answer by Gogonati(817)

 Question 454771: I am not sure how to find out the LCD. Can you please help? Thanks!! 3a^2/a^2+a+1 2a/a-1 a^3/a^3-1 I know that in order to find the LCD you would have to multiply the top and bottom of the fraction but on this one I just keep getting stuck :( Help! Click here to see answer by stanbon(57967)

 Question 457510: 2. In the equation below, if the x-value is increased by 3, what would be the effect on the corresponding y-value? 8x + y = 32 Click here to see answer by richwmiller(9144)
 Question 457510: 2. In the equation below, if the x-value is increased by 3, what would be the effect on the corresponding y-value? 8x + y = 32 Click here to see answer by stanbon(57967)

 Question 457858: I'm trying to solve the inequality: -3 < x < 0 so that a < 1/(x+4) < b The answer in the back of the book is: a = 1/4 and b = 1 but, when I work it, I get the opposite. Here's what I am doing: -3 < x < 0 -3+4 < x+4 < 0+4 1 < x+4 < 4 1/1 < 1/(x+4) < 1/4 1 < 1/(x+4)< 1/4 a = 1 b = 1/4 Any insight would be appreciated. Bill Click here to see answer by scott8148(6628)

 Question 459648: Jane is thinking of a number such that 3 less than twice that number is the additive inverse of 7. What is the number? Which inverse operation in the correct sequence will solve the riddle? A. Add 3; then multiply by 2 B. Add 3; then divide by 2 C. Multiply by 1/2, than subtract 3. D. Multiply by 1/2, then divide by 3. Click here to see answer by richwmiller(9144)

 Question 460256: Please help with this question...I cant figure it out...thanks! Suppose \$5000 is in invested at interest rate k, compounded continuously, and grows to 6954.84 in 6 yr. a)Find the interest rate. b)Find the exponential growth function. c)Find the balance after 10 yr. d)Find the doubling time. Click here to see answer by nerdybill(7003)

 Question 460211: what is the equation for the line that contains the point (6,-10) and is perpendicular to the line y=-8+x Click here to see answer by ankor@dixie-net.com(15746)

 Question 462380: Can someone show me how to solve using the addition and multiplication principles? 2 + 5x < 42 Click here to see answer by MathLover1(6812)
 Question 462380: Can someone show me how to solve using the addition and multiplication principles? 2 + 5x < 42 Click here to see answer by stanbon(57967)

 Question 463985: Put into reduced ratio form; 4 1/2 miles to 1 3/10 miles Click here to see answer by algebrahouse.com(1079)

 Question 464355: For the function f (x) = 7x + 9, determine whether f (x) is one-to-one. If so, find the formula for the inverse and give the domain and range for f -1. Click here to see answer by lwsshak3(6761)

 Question 464637: Solve using the multiplcation principle. Simplify -5/6x= -9/10 Click here to see answer by rfer(12730)

 Question 465996: what is this 7 X 8 = 8 X 7 Click here to see answer by sofiyac(695)

 Question 466497: Beginning & Intermediate Algebra: Please explain in simple terms, what does the addition/subtraction and multiplication/division properties means? How do I know what to substract or add in linear equations? Which number to add or subtract on both sides and how do I know when to do either? Also what is the definition of a slope on a graph? Click here to see answer by richard1234(5390)

 Question 467300: hi i really need help with these problems I would greatly appreciate it if you could help.. #1)the multiplicative inverse of 1 over 3 is.. 1)1/3 2)-1/3 3)3 4)-3 #2)-6(a-7) state the name of the property used #3)the quotient (9.2 x 10 exponent 6) & (2.3 x 10 exponent 2) thank you for you time. Click here to see answer by jorel1380(2518)

 Question 467756: how can I learn algebra in a short time.? how can I learn algebra in a short time Click here to see answer by Alan3354(31519)

 Question 470560: solve using the multiplication principle -2x < -8 Click here to see answer by robertb(4012)