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

 Question 174607: Solve the system of equations using the addition (elimination) method. If the answer is a unique solution, present it as an order pair:(x,y). If not, specify whether the answer is "no solution" or "infinitely many solutions". 6x + 2y =2 3x + 5y =5 4x-3y=1 -12+9y=5 Click here to see answer by Mathtut(3670)

 Question 173727: Evaluate the functions for the values of x given as 1, 2, 4, 8, and 16. Describe the differences in the rate at which each function changes with increasing values of x. 1. f(x)=2x^3 + 7x^2 -x -1 2. f(x)= 10^x 3. f(x)= 1n x Click here to see answer by edjones(7569)

 Question 174644: 8m^3 + 27/ 2m+3 answer:4m^2-6m+9 need a full break down of how my book got this answer i know how they got 4m^2 and +9 but still lost as to how they got the -6m Click here to see answer by nerdybill(7011)

 Question 174642: x^3 + 2x^2 - 5x + 12/ x+4 answer:x^2-2x+3 need a full break down of how my text book got that answer i can go as far as getting the first part of the answer which is x^2 if any one is generous enough as to how my book got -2x+3 that would be nice or a full break down Click here to see answer by Mathtut(3670)

 Question 174627: Hello. i need help answering a question from this table : Calories Burned During Exercise (150-lb person exercising for 60 minutes) Exercise : Calories : Dancing = 250 calories Biking, walking (3-5 miles per hour) = 300 calories Soccer, jogging (4-5 miles per hour) = 400 calories Swimming, skiing) = 500 calories Running (5-7 miles per hour )= 650 calories the questions are: 1) Write and solve a proportion to find how many calories you would burn if you performed one activity in the table for 60 minutes. 2) Write and solve a proportion to find how many calories you would burn if you did the activity for 60 minutes three times a week. Click here to see answer by stanbon(57984)

 Question 173007: this is not homework.. please show work and answer... i have to understand this stuff. thanks so much!! 1. Find the zeros of y = (x + 7)(x – 3)(x – 2). Then write the polynomial in standard form. 2. Factor x3 – 2x2 – 15x. Find the relative maximum and relative minimum. When submitting an answer in the form of an exponent, use a caret (^) to indicate the power. For example, 53 would be written as 5^3. 3. Write a polynomial function in standard form with zeros at –5, –4, and 3. 4. Find any multiple zeros of ƒ(x) = x4 – 25x2 and state the multiplicity. Click here to see answer by edjones(7569)

 Question 174787: For the system of equations Find the conditions on a,b,c,d,e anf f, where b and e are nonzero, such that the equations have i. Infinitely many solutions ii. No solution iii. A unique solution Click here to see answer by Edwin McCravy(8999)

 Question 174833: (13) Simplify: 20 + 7x - 3x^2 / x^2 - 16 (divided by) 6x + 10 / 2x^2 + 5x - 12 Thank you so much ! Really do Appreciate it alot Click here to see answer by jim_thompson5910(28717)

 Question 174882: I have a block with one edge at a known temp. of 200 degrees C. The temp varies through the block according to the equation: t = 200 - 5x - x^2 What is x when t = 50? t=temp. x=position I've tried solving for x and substituting into the original equation, but it's been a long time since i had algebra, and i'm doing something wrong. this appears to be a very problem, and i'm feeling might stupid right now. any help is greatly appreciated. Click here to see answer by jim_thompson5910(28717)

 Question 174881: I have a block with one edge at a known temp. of 200 degrees C. The temp varies through the block according to the equation: t = 200 - 5x - x^2 What is x when t = 50? t=temp. x=position I've tried solving for x and substituting into the original equation, but it's been a long time since i had algebra, and i'm doing something wrong. this appears to be a very problem, and i'm feeling might stupid right now. any help is greatly appreciated. Click here to see answer by jim_thompson5910(28717)

 Question 174983: 56. Tonya wants to make a metal tray by cutting four identical square corner pieces from a rectangular metal sheet. Then she will bend the sides up to make an open tray. a. Let the length of each side of the removed squares be x in. Express the volume of the box as a polynomial function of x. b. Find the dimensions of a tray that would have a 384-in. to the 3rd power capacity. rectangle diagram with length 20in. and width 16in. Click here to see answer by Alan3354(31538)

 Question 174979: V=0.104h-0.018a-2.69 (a)age=14 (h)hieght=67" Solve the formula for age(a). Estimate how old you will be when your air volume is 90% of its current volume. (use current hieght) Click here to see answer by mangopeeler07(462)

 Question 175072: If a vendor charges p dollars each for rugby shirts then he expects to sell 2000-100p shirts at a tournament. find a polynominal R(p) that represents the total revenue when the shirts are p dollars each. Find R(5), r(10), and R(20) Click here to see answer by Mathtut(3670)

 Question 175071: the length of a rectangular swimming pool is 2x-1 meters,and the width is x + 2meters. Write a polynomial A(x) that represents the area. Find A (5). Click here to see answer by SAT Math Tutor(36)

 Question 175166: Would you please help me with these problems? 1). Area of a Parallelogram: Find a trinomial A(x) that represents the area of a parallelogram whose base is 3x+2 meters and whose height is 2x+3 meters. Find A(3). 2. Compound Semiannually: P dollars is invested at an annual interst rate r for 1 year. If the interest is compounded semiannually, then the polynomial P(1+r/2)² represents the value of the investment after 1 year. Rewrite this expression without parentheses. Evaluate the Polynomial is P=\$200 and r=10%. 3. Perimeter of a Rectangle: The peremeter of a rectanglar backyard is 6x+6 yards. If the width is x yards, find a binomial that represents the length. 4. Selling Shirts: If a vendor charges p dollars each for rugby shirts, then he expects to sell 2000-100p shirts at a tournament. Thank you so much! Click here to see answer by stanbon(57984)

 Question 175182: I just have a couple of questions. 1. What is the basic principle that can be used to simplify a polynomial? 2.What is the relevance of the order of operations in simplifying a polynomial? I have searched everywhere and am unable to find the answer.Do you just remove the common factors and follow the order of operations?Thanks in advance. judy Click here to see answer by Mathtut(3670)

 Question 175164: How do I determine the remainder when 3t^2+5t-7 is divided by t-5? Click here to see answer by nycsub_teacher(90)

 Question 175326: How do you factor this polynomial in the simplest form? x^4 - y^4 Click here to see answer by josmiceli(9819)

 Question 175363: 2x^3 - 5x^2 + 22x + 51/2x + 3 answer: x^2 -4x +17 need a break down of how my text book got that answer i know how they got x^2 and +17 not sure how they got the -4X please break down answer in long division form radther then synthetic division Click here to see answer by gonzo(654)

 Question 175435: 15t^2-29t-14\ 3t-7 answer:5t+2 need a full break down of how my book got this answer i go as far as 15t\3t+5t and -14t/-7=+2 but what happened to the -29t in this equation Click here to see answer by stanbon(57984)

 Question 175439: 2m^2+13m-18/2m+3 an polynomial wiz can break down why the answer is: m+5 -33/2m+3 totallu confused with this problem Click here to see answer by Mathtut(3670)
 Question 175439: 2m^2+13m-18/2m+3 an polynomial wiz can break down why the answer is: m+5 -33/2m+3 totallu confused with this problem Click here to see answer by stanbon(57984)