Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 278637: If the area of a rectangle is 330m squared and one side of the rectangle is 7m longer than the other side, what are the dimensions of the rectangle?
Click here to see answer by nyc_function(2733)

Question 278698: the rate, given that the distance is 200 feet and the time is x+3 seconds

Click here to see answer by stanbon(57224)

Question 278737: This question deals with solving a fractional equation that is reductible to a quadratic equation. The question reads: 2/y+1 + 1/y-1 = 1
Click here to see answer by mananth(12270)

Question 278740: This question deals with solving quadratic equations by completing the square. The question wants me to approximate the solution to the nearest thousanth. The question reads: t^2-4t=7, I believe the next step is to multiply each side by 1/2 but not sure if that is right or what to do after that. ANy help is much appreciated, Thanks
Click here to see answer by solver91311(16868)

Question 278774: If an object is given an initial velocity of v0 feet per second from a height of S0 feet, then its height S after t seconds is given by the formula S = -16t2 +v0t + S0. A rock is thrown into the air at 26 feet per second from a height of 13 feet. How long does it take to reach the earth?
Click here to see answer by vleith(2825)

Question 278775: (x – 5)^2 = 3
Click here to see answer by Grinnell(63)

Question 278851: Can someone help me please?
How do I figure out how many solutions there are to this equation?
x2 + 4x + 4 = 0
Click here to see answer by richwmiller(9135)

Question 278853: Please help me.
Find the discriminant for the following quadratic equation and use it to determine the number of roots or real solutions it has.
x2 + 3x + 15 = 0
Click here to see answer by richwmiller(9135)

Question 278845: Can I have some help with this one please?
y = x2 - 2x - 15
I have to find all these for the equation:
a.The y-intercept
b.The x-intercepts if possible
c.The vertex
d. The line of symmetry
Click here to see answer by richwmiller(9135)

Question 278861: Solve the quadratic equation 6x^z - 11x - 7 = 0
Click here to see answer by scott8148(6628)

Question 278729: This question deals with solving the quadratic equation by completing the square. Here is the question: x^2=2x-17 Not exactly sure what do to to complete the square. Any help is much appreciated. Thanks
Click here to see answer by scott8148(6628)

Question 278733: This question deals with solving the quadratic equation by using the quadratic formula. The question is x^2=18-7X. I know the formula is ax^2+bx+c=0, A does not equal 0. I've looked at the formula, but have no idea how exactly to use it. ANy help would be much appreciated. Thanks.
Click here to see answer by scott8148(6628)

Question 278872: j/8+8=11
Click here to see answer by richwmiller(9135)

Question 278735: This question deals with solving Equations that are reducible to Quadratic Equations section: The question wants me to solve an equation that is quadratic in form. The question is y^4-5y^2+4=0, I think next step is to make (y^2)^2-5(y^2)+4=0, not sure what to do next
Click here to see answer by scott8148(6628)

Question 278943: Is it possible for a quadratic equation to have 0 solutions? 1 solution? 2 solutions? More than 2 solutions?
How can you tell algebraically AND graphically how many solutions a quadratic equation has?

Click here to see answer by richwmiller(9135)

Question 278889: I have to complete the square: r^2+8r+72=0
Click here to see answer by edjones(7569)

Question 278949: please help me solve this 5n(squared+2n+6=0
Click here to see answer by richwmiller(9135)

Question 278906: How do i solve x^2+6x+13=0 by using the quadratic formula?

Click here to see answer by checkley77(12569)

Question 278966: 0=10x squared - 50x
please help me solve this
Click here to see answer by checkley77(12569)

Question 279008: Solve the following equation for x by using the quadratic formula
8x^2+9x+2=0
Click here to see answer by Edwin McCravy(8880)

Question 279107: 64a^2-25=0 solve the solution set
Click here to see answer by Grinnell(63)

Question 279249: How do I solve
7/x = 9/x - 1/11?
6/z+8 = 5/z-3?

4-s/7-s = 3/s-7?

Click here to see answer by stanbon(57224)

Question 279250: sqrt(2x+1)=sqrt(x)=1
Please help I am stumped on this one.
Click here to see answer by CharlesG2(828)

Question 279250: sqrt(2x+1)=sqrt(x)=1
Please help I am stumped on this one.
Click here to see answer by Alan3354(30967)

Question 279246: I am in desperate need of help on this problem.
x^1/2-4x^1/4=-3
Click here to see answer by Earlsdon(6287)

Question 279267: Please help me fill in the blanks.
x^2 + 2/3x + [(2/3)/2]^2 = (x + ____)^2
----
x^2 + (2/3)x + (1/3)^2 = (x+(1/3))^2
=============================================
Cheers,
Stan H.
Click here to see answer by stanbon(57224)

Question 279299: Lee can frame a cabin in 4 and 4/5 days less than Ron. When they work together, they will do the job in 4 days. How long would each of them take to frame the cabin alone?
Click here to see answer by josmiceli(9650)

Question 279384: Write a quadratic equation with the solutions (-3,1) in the form of ax^2+bx+c=0.
I thought it was x^2-4x+3=0.
I don't think this is right, can someone show me what I am doing wrong? Please!
Click here to see answer by richwmiller(9135)

Question 279553: Please help me. The problem is this, Write a quadratic equation having the given numbers as solutions. 3, -8
Click here to see answer by richwmiller(9135)

Question 279558: Hello, I need help with a couple of problems. I am totally lost!
y= x^2 + 2x and y = x^2 + 8x + 16 Any help would be greatly appreciated!
Click here to see answer by richwmiller(9135)

Question 279568: I need help please. Sarah Comar's Candy Store sold a total of 53 pounds of jelly beans, selling two kinds of jelly beans. The first kind was priced at $4.45 per pound, and the second was priced at $1.12 per pound. In all, $125.96 was taken in for the two types of jelly beans. How many pounds of each kind were sold? ( Let x represent the number of pounds of the first kind and y the number of pounds of the second.
Click here to see answer by josmiceli(9650)

Question 279599: The lenght of a rectangle is twice its width with an area of 2yds^2.
I got that (L)(w)=area
and L=2w
(2x)(x)=2yds^2
This is where I get confused. Can someone help me out?
Click here to see answer by stanbon(57224)

Question 279624: need help solving negative b+ or minus square root of b squared - 4ac over 2a
Click here to see answer by Theo(3458)

Question 279556: Can someone help me please. The problem is Complete the square. Then write the trinomial square in factored form. x^2 -2/5x
Click here to see answer by richwmiller(9135)

Question 279649: how to solve x^2+5x=36
Click here to see answer by Inkyvoyd(17)

Question 279649: how to solve x^2+5x=36
Click here to see answer by richwmiller(9135)

Question 279622: (3x)(3x)+5x-12=0
Click here to see answer by richwmiller(9135)

Question 279661: i must solve this by completing the square. 3x^2-6x=27 how do you do this
Click here to see answer by scott8148(6628)

Question 279734: How would I find the x-intercepts for the quadratic equations:
6x^2 - 7x + 2 = 0
5x^2 – 21x + 4 = 0
4x^2 – 3x - 1 = 0

Click here to see answer by stanbon(57224)

Question 279665: what are the product of the roots of the equation ax^2+bx+c=0. im not sure how this is done
Click here to see answer by josmiceli(9650)

Question 279662: solve using the quadriatic formula. im not sure how to go about this. please help if possible thanks 5x^2-3x-3=0
Click here to see answer by jim_thompson5910(28476)

Question 279761: I would appreciate any help that you give me on this problem. I am to complete the square. the problem is
.4T^2 =.7T = .3T - .2
Click here to see answer by Fombitz(13828)

Question 279772: I am having difficulty on this problem. Any help that you could provide would be appreciated.
directions are: solve the equation by completing the square.
x^2 + 3x - 1 = 0
Thanks, Mike
Click here to see answer by Fombitz(13828)

Question 279934: If a right triangle has sides of 12 and 5, what is the hypotenuse side equal to?
If a right triangle has a hypotenuse side equal to 13 and one side equal to 5 what is the other side?

Click here to see answer by stanbon(57224)

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