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

Tutors Answer Your Questions about Polynomials-and-rational-expressions (FREE)

Question 136138: I really would like some help on the rational addition expression...Thank you for all your help!!

n - 2 n^2 + 5n + 10
----- + --------------
n + 4 n + 4
Click here to see answer by solver91311(17077)

Question 136068: Tracy leaves for work at 8:a.m traveling at 36 mph. Sarah finds that Tracy has forgotten her briefcase, so she leaves 8:05 chasing after her at 50 mph. At what time will Sarah catch tracy?
Click here to see answer by ankor@dixie-net.com(15747)

Question 136122: need to know how to solve equations in the first degree. thks
Click here to see answer by nycsharkman(136)

Question 136070: please help me graph and solve this equation: Ann leaves Avon at noon biking to Batavia at 16 km/h. At 1 p.m Bill leaves Batavia and bikes toward avon at 20 km/h. If the distance between avon and batavia is 70 km, at what time do ann and bill meet?
Click here to see answer by checkley77(12569)

Question 136198: Find each quotient. Try to write only the answer.

-12z4 y2
__________
-2z10 y2

Click here to see answer by stanbon(57984)

Question 136207: C=5/9(F-32) solve for F
Click here to see answer by Fombitz(13828)

Question 136222: Simplify:
Click here to see answer by Edwin McCravy(8999)

Question 136222: Simplify:
Click here to see answer by ky_mathemagician(1)

Question 136272: i need help simplifying
Click here to see answer by checkley77(12569)

Question 136307: Factor this polynomial completely:
Click here to see answer by scott8148(6628)

Question 136338: can you explain to me how to find the answer to the following problems on Polynomials and Monomials.
(3a-7)-3(4b + 7)
2(x^2+5-2x-7)-3(4x+8-3x^2+3x)
8-3(4x-(7-2x))+18

Click here to see answer by checkley77(12569)

Question 136347: f=f1f2/f1+f2 solve for f1
Click here to see answer by vleith(2825)

Question 136439: y/y-4 -6/y+7= y^2/y^2+3y-28
Click here to see answer by algebrapro18(206)

Question 136430: please show me how to solve so i know the steps to use
16x2y
--------
24xy3
Click here to see answer by checkley77(12569)

Question 136496: simplify/solve it reads x-1 over x-3 is equal to 2 over x-3:

x-1 2
--- = ---
x-3 x-3
Click here to see answer by checkley77(12569)

Question 136508: 3/x-2 + 5/x+1 = 1/x^2-x-2
I think this is considered fractional equations and inequalities?
Click here to see answer by stanbon(57984)

Question 136499: A positive number is 30 less than its square. Find the number.
Click here to see answer by ankor@dixie-net.com(15747)

Question 136536: Given the polynomial function has the given zero, find the other zeros.
f(x) = x^3 - 8x^2 + 17x - 30; 6
Choices are:
a) 1 + square root of 5i, 1 - square root of 5i
b) 1 +2i, 1-2i
c) 1 + square root of 5, 1 - square root of 5
d) -1+2i, -1-2i
I think I have ruled out c - but I can't figure out the imaginary #'s. I don't know if I'm just not thinking clearly, or just forgetting something that I already know.
If you could help me with this, I would greatly appreciate it.
CB
Click here to see answer by stanbon(57984)

Question 136550: multiply. (7-9x^6)^2
Click here to see answer by HyperBrain(694)

Question 136551: Projet Motion. if h=-16t^2+96t represents the height of a rocket, in feet, t seconds after it was fired, when will the rocket hit the ground? Hint: the rocket is on the ground when h=0.
Click here to see answer by vleith(2825)

Question 136630: Find a fourth-degree polynomial equation with integer coefficients that has the given numbers as roots.
The given numbers are 3+ i and -2i
Click here to see answer by Fombitz(13828)

Question 136766: 2. [6 pts.] The gross domestic product (GDP) of a developing country from 1999 (t=0) to
2007 is approximated by
f(t) = −0.2t^3 + 2.4t^2 + 60 (0 <_ t _> 8)

where f(t) is measured in billions of dollars. Find the maximum growth rate of the
country’s GDP in the given period.
Thank you so much for your time. I have been trying to do this problem for a couple of days now. I work full time and go to school full time so its hard to keep up in class.
Click here to see answer by stanbon(57984)

Question 136816: P(x)=2x^3-21x^2-2x+25; a=1,b=2
Click here to see answer by solver91311(17077)

Question 136816: P(x)=2x^3-21x^2-2x+25; a=1,b=2
Click here to see answer by hasma812(1)

Question 136813: hey
I need to find Greatest Common Factor(GCF)
6a^2b^2 + 18ab^3
Click here to see answer by solver91311(17077)

Question 136811: Hi
i need help with this problem
Find the product of 6x-5 and -3x+2
Click here to see answer by solver91311(17077)

Question 136835: A rectangle has an area of (16p^2-40pr+25r^2)
Find the dimensions of the rectangle.
Click here to see answer by checkley77(12569)

Question 136870: x^2-18x+17
Click here to see answer by stanbon(57984)

Question 136929: hello i want to know the answe for this thank you
2(x+2) divided 4(x-2)
------ ------
5(x-3) 5x-15
Click here to see answer by dolly(163)

Question 136956: I need help on how to figure this out:
To determine the number of deer in a game preserve, a conservationist catches 804 deer, tags them and lets them loose. Later, 549 deer are caught; 183 of them are tagged. How many deer are in the preserve? Please help
Click here to see answer by checkley77(12569)

Question 136966: find 2 solutions for "n"
14n^2=25n+25
which leads to.. 14n^2-25n-25=0
help pleasee

Click here to see answer by scott8148(6628)

Question 136973: I am trying to solve polynomial equations by factoring and i need help. The problem is (9t+11)(t+9)=79 Please help
Click here to see answer by checkley77(12569)

Question 136976: I have not done algebra in over 10 years and I don't remember any of this stuff. Please help. Explain this to me?
Which of the following expressions represents the product of 3 less than twice x and 2 more than the quantity 3 times x.
A. -6x squared+25x+ 6
B. 6x squared+5x+6
C. 6xsquared-5x+6
D. 6xsquared-5x-6
E. 6xsquared-13x-6

Click here to see answer by checkley77(12569)

Question 137047: Usually I know how to factor up to four terms (by grouping method), but this particular problem caught me because it is five terms. Here is the problem: Factor the expression completely: 7n^5+7n^4-3n^2-6n-3. Please explain it, and help! Thank you so much. :)
Click here to see answer by stanbon(57984)

Question 137059: is x+3 a factor of -2x^3+x^2-63?
Click here to see answer by stanbon(57984)

Question 137136: find the slope and the y intercept of the line
9x = 2y + 8 ? what is the slope

2)FIND THE SLOPE- (3,4) AND (9, -10)? SLOPE M IS WHAT
3)DETERMINE WHETHER THE GRAPH OF THE TWO EQUATION ARE PERPENDICULAR
Y=2X- 3
6Y= 5-X
3)FIND AN EQUATION OF THE LINE CONTAINING THE GIVEN PAIR OF POINTS
(-2, -8) AND (-9, -3)
WHAT IEQUATION OF THE LINE IS Y
Click here to see answer by stanbon(57984)

Question 137179: Solve for R.

A=R*a/R+a
Click here to see answer by Fombitz(13828)

Question 137262: how do you complete the square? x^2+10x+24=0
Click here to see answer by MORUPHOSUOLALE(24)

Question 137299: Evaluate (x+y)-1 given x=3 and y=-5
Click here to see answer by oscargut(900)

Question 137308: Simplify ((9x^4-72X)/(3x^2-12))*((x^2+x-2)/(4x^3+8x^2+16x))
Click here to see answer by Earlsdon(6294)

Question 137302: Which of the following statements is false?
A. When multiplying monomials, one should add the exponents of like terms.
B. When dividing monomials, one should subtract the exponents of like terms.
C. When dividing monomials, after the exponents of like terms are subtracted, the variable will always be placed in the denominator.
D. When raising a monomial to a power, one should mulitply all exponents in the monomial by the power.
Click here to see answer by stanbon(57984)

Question 137296: In the year 1998, there were -4.57 times 10 to the 7th power- cars in America. The population of America was -2.3 times 10 to the 6th power-. What was the average number of cars per person in America in 1998?
A. 0.5
B. 1.98
C. 5
D. 19.8
Click here to see answer by stanbon(57984)

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