Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 60626: PLEASE HELP I"M STUCK!!!
Write an equation of the line in slope intercept form with slope 1/3 that crosses the y axxis at (0,-2)
Click here to see answer by consc198(59)

Question 60630: Find the value of c to make g^2 - 18g + c
Click here to see answer by checkley71(8403)

Question 60718: 6x2 - 13x + 6 = 0
Click here to see answer by checkley71(8403)

Question 60718: 6x2 - 13x + 6 = 0
Click here to see answer by funmath(2933)

Question 60627: please help
FInd the product :
-5a^2(a^2-6a+7)
Click here to see answer by checkley71(8403)

Question 60729: 37. Solve the quadratic equation by factoring.
x^2-9x-4=6

Click here to see answer by GANNU0716(2)

Question 60755: I am having a REALLY hard time with this:
Complete the given table of values and graph the equation.
y=x^2-5x+4
The given table has nothing under y.
Under x looking downward is 0,1,2,3,4.
Your help would be greatly appreciated!
Thanks~
ac
Click here to see answer by Edwin McCravy(20054)

Question 60764: Solve the equation
Click here to see answer by josmiceli(19441)

Question 60768: Please help me solve!!!
to divide 7/(x+2) by (x-2)/14, you can multiply 7/x+2 by what???
Click here to see answer by Edwin McCravy(20054)

Question 60623: (8t-3)^2=0
(2x-1)^2=8
x^2-4x+4=49
Click here to see answer by checkley71(8403)

Question 60788: Can you help me find the x-intercepts??
y=x^2+6x+8 and
y=x^2-2x+4
Thanks for your help!
CH
Click here to see answer by funmath(2933)

Question 60560: 102. Time swinging. The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2 = pie ^2L. If a child is on a swing with 10 feet chain, then how long does it take to complete one cycle? my brain is dead cam some one help my brain rejuvenate :)
Click here to see answer by tutorcecilia(2152)

Question 60820: i have to find the coordinates of the vertex of y=-7xsquared+2x
Click here to see answer by funmath(2933)

Question 60819: i have to find the coordinates of the vertex of y=2x squared
Click here to see answer by funmath(2933)

Question 60815: HELP!!!! it says identify the axis of symmetry, create a suitable table of values, then sketch the graph.
y=-x^2+3x-3
I am so lost when it comes to these! Your help would be greatly appreciated!
Thanks
CH
Click here to see answer by Nate(3500)

Question 60648: Solve: 17-4x/12=5

An 80-pound grass seed mixture is 30% bluegrass seed. How many pounds of seed containing no bluegrass seed (0%) should be added to the seed mixture for a resulting blend that is 20% bluegrass seed?

Click here to see answer by ankor@dixie-net.com(22740)

Question 60864: 3x^2-6x=3
Not sure if I am doing this right, but so far I have
3x^2-6x-3=0
x^2-3x-1=0
Am I on the right track?
Can you help me with the rest?
Thanks so much!
ac
Click here to see answer by venugopalramana(3286)

Question 60863: Okay it says to solve by completeing the square.
4x^2+2x-3=0
So far I have the following:
4x^2+2x=3
x^2+2/4x=3/4
Then I get totally lost and don't know what else to do!! HELP! PLEASE!
Thanks in advance!!!!!!
CH
Click here to see answer by venugopalramana(3286)

Question 60835: Can someone please help me figure this out?

Find two consecutive positive integers such that the sum of their squares is 85.
Click here to see answer by jai_kos(139)

Question 60913: Please, please help with this question. I do not know where to go.
When a ball is thrown vertically upward, its height (h, in feet) above the ground after t seconds is described by the mathematical formula h = - 16t2 + 96t + 80. At what times is the ball 103 feet above the ground?
Click here to see answer by checkley71(8403)

Question 60937: A garden area is 30 ft long and 20ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is the width of the path?
Click here to see answer by checkley71(8403)

Question 60921: i have to find the coordinates of the vertex of y=3.5x^+2x-8
Click here to see answer by pvaka(23)

Question 60919: i have to find the coordinates of the vertex of y=6x^+2x+4
Click here to see answer by pvaka(23)

Question 60920: i have to find the coordinates of the vertex of y=1/2x^+3x-7
Click here to see answer by pvaka(23)

Question 60969: Question 7) If the area of the given rectangle is 77cm2, find its length and breadth Length= x+4 Breadth= x
Click here to see answer by joyofmath(189)

Question 60425: answer
Find 12% of 3600
Click here to see answer by lags2much(2)

Question 61067: This question isn't shown in the book.
Question:
The area of a square is 32 more than the perimeter. Find the length of a side.

If you could help, I would really appreciate it.
Thank You, Amy
Click here to see answer by checkley71(8403)

Question 61072: 3x^-2-27x^-1+42=0
I need help solving for u and back substituting for x. I would appreciate your help. Thanks
Click here to see answer by Earlsdon(6294)

Question 61083: The question says find the x-intercepts y=4x^2+5x-6
y=4x^2+5x-6
0=4X^2+5X-6
(4x^2+-3x)+(8x+-6)
x(4x+-3)+2(4x+-3)
(x+2) (4x+-3)
Ok I can get to here but I need to solve for the X-intercepts and I'm stuck
Please help

Click here to see answer by uma(370)

Question 61109: Solve the following equations by completing the square.
x^2+8x+7=-8
2x^2=7x-15=0
u^2+10u+9=0
Solve the quadratic by using the quadratic formula.
4x^2-3x=-1

Click here to see answer by pvaka(23)

Question 60643: real or imaginary solutions to each equation
I put prens. around all that is squared, I hope this helps, I did not know anyother way to write it.
94. (sqrt 7x + 29) = x+3
Click here to see answer by tutorcecilia(2152)

Question 61146: solve for x:
x^2-10x-5=0
I did complete the square and got
x=5+/- square root of 30
did i do it correctly?
Click here to see answer by stanbon(75887)

Question 61146: solve for x:
x^2-10x-5=0
I did complete the square and got
x=5+/- square root of 30
did i do it correctly?
Click here to see answer by asha(30)

Question 61187: need help!
find the product of:
sqrt3a * (sqrt12a-4sqrt3)
Click here to see answer by tutorcecilia(2152)

Question 61488: 22. The equation h=-16t^2+112t give the height of an arrow, shot upward from the ground with an initial velocity of 112ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a a height of 180 ft.
Click here to see answer by venugopalramana(3286)

Question 61490: What is the axis of symmetry for y=x^2-5x+3?
Click here to see answer by josmiceli(19441)

Question 61508: x(x-4)=-8
What do I do when there is a negative under the square root? Do I use i for imaginary number?
Click here to see answer by funmath(2933)

Question 61485: 6. The length of a rectangle is 1 cm longer than it's width. If the diagonal of the rectangle is 4cm, what are the dimensions (the length and the width) of the rectangle?
Click here to see answer by tutorcecilia(2152)

Question 61519: Hello Again!
Can someone help me solve this problem?
\/2x-1-x=-2
(\/ is the radical sign) the radical sign is only over 2x-1
Thanks in advance for your help!
ac
Click here to see answer by asha(30)

Question 61593: How do you even start this? How do you solve this question:
2x = 9x^2
Click here to see answer by joyofmath(189)

Question 61604: How do I finish this? x^2+8x-3=0
x^2+8x=3
x^2+8x+64/4=3/1+64/4=12/4+64/4=76/4
x^2+8x+64/4=76/4
(x+8/2)^2=76/4
x+8/2=+ or - the square root of 76/4........
I got stuck right here.
Click here to see answer by rchill(405)

Question 62001: please help!!
If x = 36, evalutate square root of x - 6
Click here to see answer by hotrodd(18)

Question 62001: please help!!
If x = 36, evalutate square root of x - 6
Click here to see answer by funmath(2933)

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