# Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!      Log On

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

 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 499417: 10. Essay; show all work. Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001218x^4 + 0.082326x^3 – 1.3267x^2 + 12.46x + 4.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is 12 years old? Ok wow I need some help please with this monster problem please. Click here to see answer by chessace(471)
 Question 499417: 10. Essay; show all work. Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001218x^4 + 0.082326x^3 – 1.3267x^2 + 12.46x + 4.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is 12 years old? Ok wow I need some help please with this monster problem please. Click here to see answer by jim_thompson5910(28593)

 Question 499432: 8.Find the product: -3x (7x^3 – 5x^2 + 7x – 9) Can I get some help with this please? Click here to see answer by jim_thompson5910(28593)

 Question 499445: 2. Essay. List the terms, coefficients, and degree of the following polynomial: 7x^5 – 3x^3 + x +2/5 ok this alot can u please help me. Click here to see answer by richard1234(5390)

 Question 499426: 9. Essay; show all work. Bob’s Barber Shop estimates their gross revenue for the second quarter to be given by the polynomial 6x^3 + 9x^2 – x – 2. The shop estimates their costs for that quarter to be given by 3x^2 + 4x – 8. For the second quarter, find and simplify a polynomial that will represent their profit. Note: Profit = Revenue - Costs please help me with this problem I am not good at these word problems. Click here to see answer by richard1234(5390)

 Question 499449: 3. Write all of the following statement(s) that apply to the following polynomial: -5x + 6x^2 + 7 (A)It is a binomial. (B)It cannot be evaluated at x = -1/3 (C)It has a coefficient of 6. (D)It is quadratic. can someone help me out of this nightmare!! Click here to see answer by jim_thompson5910(28593)

 Question 499453: 4. Essay; show all work. Add the following polynomials: (-1/3x^2-1/4x+3/4)+(1/2x^2-1/4x-1/2) I do not understand how to do this !!! Click here to see answer by MRperkins(300)

 Question 499472: Find the value of the expression when z=-7. 2z-1/z-8 Click here to see answer by jim_thompson5910(28593)
 Question 499472: Find the value of the expression when z=-7. 2z-1/z-8 Click here to see answer by MRperkins(300)

 Question 499478: Identify the degree of each term of the polynomial and the degree of the polynomial. -9x^3+5x^2+5x+5= The degree of the first term is ________ The degree of the second term is __________ The degree of the third term is _________ The degree of the fourth term is __________ The degree of the polynomial is ___________ Click here to see answer by MRperkins(300)

 Question 499673: 12x suqared plus 82x-14=0 How do I work it out Click here to see answer by Earlsdon(6287)

 Question 500025: 4. Essay; show all work. Add the following polynomials: (-1/3x^2-1/4x+3/4)+(1/2x^2-1/4x-1/2) I do not understand how to do this !!! Click here to see answer by rfer(12657)

 Question 500493: Write a polynomial equation with integer coefficients that has the given roots. x=7 x=-5 Click here to see answer by chessace(471)

 Question 501093: Is it possible to have a rational expression whose denominator is equal to zero, even though this is not possible with a fraction? Click here to see answer by MathLover1(6628)

 Question 501578: Simplify: 2/5(5x-10)+4x =(2/5 x 5x)- (2/5 x 10)+4x =2x-4+4x =6x-4 Click here to see answer by edjones(7569)

 Question 501545: OK PLEASE HELP I AM LOST!!! 16. Male caloric needs. The number of calories needed each day by a moderately active man who weighs w kilograms, is h centimeters tall, and is a years old can be estimated by the polynomial 19.18w + 7h − 9.52a + 92.4. One of the authors of this text is moderately active, weighs 87 kg, is 185 cm tall, and is 59 yr old. What are his daily caloric needs? 26.Divide and check: t^2-13/t-4 help please, thanks!! 30.multiply (x^4 − 3)(2x + 1) may I please get help with this? Click here to see answer by ankor@dixie-net.com(15649)

 Question 501940: what are the zeros of this polynomial function and all the work: f(x)=x^4-4x^3-20x^2+48x Click here to see answer by solver91311(16877)

 Question 502212: I am confused on how to solve 3x^2/7y^4 * 35xy^3/12x^2 I tried to make the 3x^2 3x-1 and 3x+1 but im not sure if it is right. the same with 12x^2 i think its 12x-1 and 12x+1 Click here to see answer by oberobic(2304)

 Question 502277: Hi. I am having trouble with stating restrictions for variables in rational expressions. the question i am having a problem with is: 3+x/x(x-2). all i have got so far is let x(x-2)=0. i was told that to state the restriction let the denominator =0. then solve for the variable. I don't know what my next steps are. please help! Click here to see answer by Alan3354(30993)

 Question 502498: Hi math world I need some help with this I do not understand!! 9. Short Answer. Find the following quotient: (x^2-81)/(x+9) 10. Essay: Show all work. Find the following quotient: (4x^2-9y^2)/(2x+3y) please help me!! Click here to see answer by Alan3354(30993)