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

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

 Question 118659: If the diameter of a circle is 1.3x10^-12 meters, then what is its radus? Click here to see answer by MathLover1(6614)

 Question 118797: What are the steps for solving this problem: Solve the linear system of equations- 3x + 7y = 15 -5x + 2y = 16 Click here to see answer by jim_thompson5910(28476)

 Question 118823: How do you solve x+2/x-3 =0 ? Thanks Click here to see answer by jim_thompson5910(28476)

 Question 118881: I have a couple...i just dont get this stuff! (x^3+2x+1)(2x^2-4x-5) and (x-2)(x+7)(2x+3) Click here to see answer by jim_thompson5910(28476)

 Question 118894: Baseball Tonisha hit a baseball into the air with an initial upward velocity of 48 feet per second. The height h in feet of the ball above the ground can be modeled by h= - 16t2 + 48t + 2, is the time in seconds after Tonisha hit the baseball. Find the time it takes the ball to reach 38 feet above the ground. Click here to see answer by jim_thompson5910(28476)

 Question 118965: Book is McGraw Hill - Beginning Algebra 6th Ed. by Hutchinson. Chapter 3 Section 3.4 exercise question at end of section number 78 Problem is to multiply the fraction (x/3+3/4)(3x/4-3/5) Click here to see answer by checkley71(8403)
 Question 118965: Book is McGraw Hill - Beginning Algebra 6th Ed. by Hutchinson. Chapter 3 Section 3.4 exercise question at end of section number 78 Problem is to multiply the fraction (x/3+3/4)(3x/4-3/5) Click here to see answer by stanbon(57219)

 Question 118981: Y^2 / y + 3 - 9 / y + 3 Click here to see answer by jim_thompson5910(28476)

 Question 118986: x / x - 3 + 1 / 3 Click here to see answer by solver91311(16868)

 Question 119002: two planes are 1350 miles apart flying toward each other at different altitudes. If one is flying 250mph and the other 290 mph, how long will it take to pass each other? Click here to see answer by solver91311(16868)

 Question 119034: the perimeter of a square is 12x^2-8x+4. find the length of one side Click here to see answer by jim_thompson5910(28476)

 Question 119024: Two jets leave Lunken airport at 3 p.m., one travleing east and the other travleing west. Thw west bound jet averages 625km/h and the eastbound jet averages 825km/h. At what time will they be 1450km apart? Click here to see answer by checkley71(8403)

 Question 119167: i have a question on a story problem? a rectangular swimming pool is surrounded by a cement walk of uniforn width.let x represent this width.. The outer dimensions of the wark are 16m by 22m and the area of the walk alone is 192m^2. What is the width of the walk? 16x + 22y=192 then what?or isnt that even right Click here to see answer by josmiceli(9649)

 Question 119164: I'm learning to divide polynomials by polynomials. I have been able to work several problems, but then get stuck as they progress. For example: 25x to the 5th power take away x to the third power take away 8x take away 2x square divided by 5xsquare take away 4x. I have placed the dividend and divisor in descending order and even tried adding 0x to the fourth power in the dividend. I seem to get the first half correct, but can't get the latter half. What am I doing wrong? Jennifer Click here to see answer by solver91311(16868)

 Question 119172: i need your help please? One side of a rectangle is 0.8 cm longer than an adjacent side. if each diagonal of the rectangle has length of 4 cm, find the dimensions of the triangle? Click here to see answer by josmiceli(9649)

 Question 119170: please help me on a story problem: a rectangular swimming pool is surrounded by a cement walk of uniform width.let x represent this width. the pool measures 6m by 10m and the total are of the pool and walk is 96m^2. What is the width of the walk? Click here to see answer by jim_thompson5910(28476)

 Question 119171: i have another ? The longer leg of a right triangle has length 1cm less than twice the shorter leg. the hypotenuse has length 1cm greater than the shorter leg. find the lengths of the three sides of the triangle. i have: x 1-x 2x-1 Click here to see answer by solver91311(16868)
 Question 119171: i have another ? The longer leg of a right triangle has length 1cm less than twice the shorter leg. the hypotenuse has length 1cm greater than the shorter leg. find the lengths of the three sides of the triangle. i have: x 1-x 2x-1 Click here to see answer by josmiceli(9649)

 Question 119036: the perimeter of a rectangle is 8x+2 and the width is x+2. Express the area as a trinomial. Click here to see answer by ankor@dixie-net.com(15624)

 Question 119321: a water faucet can fill a sink in 6 minutes, whereas the drain can empty it in 4 minutes. if the sing is full, how long will it take to empty if both the faucet and the drain are open? Click here to see answer by ankor@dixie-net.com(15624)

 Question 119320: a water tank can be filled in 20 hours by an inlet pipe and emptied in 25 hours by an outlet pipe. how long will it take to fill the tank if both pipes are left open? Click here to see answer by stanbon(57219)