Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 206986: To solve quadratic equations-
The sum of three positive, consecutive numbers is 149. find the numbers.
letx=the first number
Click here to see answer by checkley77(12569)

Question 207053: I need your help solving the following equation:
m^2=7m
I already have the answer, but I can't manage to solve it by myself, I need a step-by-step solution.
Thank you.
Click here to see answer by Alan3354(30993)

Question 207068: 2x^2-x=-5 solution set= ?
Click here to see answer by edjones(7569)

Question 207069: write quadratic equation in the variable x having the given numbers as a solution. make sure its in the ax^2+bx+c=0 form. Solution is 10, only solution.
Click here to see answer by solver91311(16885)

Question 207139: 7x squared plus 5x - 2=0
Click here to see answer by jim_thompson5910(28595)

Question 207201: Q 5: If the area of a table surface is m2 + m – 30 Sq. In. Given that the length is (m + 6) inches, find the expression to represent the width of the table.

Click here to see answer by checkley77(12569)

Question 207243: y= (x=2)(x-1)
Find vertex, find axis of symmetry, does it open up or down>
Click here to see answer by Alan3354(30993)

Question 207261: question is: solve the quadratic equation by completing the square:
x^2+6x=0
x^2+6x(6/2)^2 = (6/2)^2
(sqrt x + sqrt 3^2)^2 = sqrt 9
x+3= +- 3
x+3=3 x+3=-3
x=0 x=-6
This question is not from a textbook, I would like to know if I did the work correctly, thank you so much for your help.
Click here to see answer by RAY100(1637)

Question 207259: the question is: solve the quadratic equation by completing the square:
x^2-20x=0
x^2-20x+(20/2)^2 = (20/2)^2
(sqrt x - sqrt 10^2)^2 = sqrt 100
x-10 = +- 10
x-10=10 x-10 =-10
x=20 x=0
I am checking to make sure I did the work correctly, this isn't from a textbook so I don't have a page # or anything to reference too.
Thank you for your help.
Click here to see answer by solver91311(16885)

Question 207256: Need to solve the equation to a quadratic. Don't know how to set up this problem.
sqrt4b+1 - sqrtb-2 = 3
Click here to see answer by edjones(7569)

Question 206737: 3x(2x+1)=18
Click here to see answer by mesut bora(1)

Question 207247: Last year Al was 6 times Bob's age
In 3 years Al will be (3 X Bob's) + 10

Click here to see answer by ankor@dixie-net.com(15650)

Question 207353: Compare the parabola defined by each equation with the standard parabola defined by the equation y = x^2. Describe the corresponding transformations, and include the position of the vertex and the equation of the axis os symmetry.
a.) y = 3x^2 - 8
b.) y = (x - 6)^2 + 4
c.) y = -4(x + 3)^2 - 7
Click here to see answer by Edwin McCravy(8909)

Question 207427: what is the quadratic equation whose roos are -3 and 5
Click here to see answer by Alan3354(30993)

Question 207427: what is the quadratic equation whose roos are -3 and 5
Click here to see answer by vleith(2825)

Question 207435: two consecutive odd integers whose product is 323
Click here to see answer by rfer(12657)

Question 207435: two consecutive odd integers whose product is 323
Click here to see answer by Alan3354(30993)

Question 207416: What will happen to the graph of the quadratic equation if you have a constant term?
Click here to see answer by rfer(12657)

Question 207432: x^2+ 11x+ 24 = 0
Click here to see answer by jim_thompson5910(28595)

Question 207507: I really need help with this word problem.Thank You.
Radius of a sphere. The radius of a sphere is given by
the formula
r=(0.75v/pi sign)^1/3
where V is its volume. Find the radius of a spherical tank
that has a volume of 32pi sign/3 cubic meters.
Click here to see answer by Alan3354(30993)

Question 207735: Solve
Click here to see answer by jim_thompson5910(28595)

Question 207774: The amount of background noise is important to television news reporters.One station developed the formula N = -t^2 + 12t + 54 showing the noise level in decibels (N) as it relates to the time after the speaker stops talking in seconds (t). How many seconds after the speaker stops will the noise level be the greatest?
i would be sooo greatful if someone could give me some steps and tools to do this problem!!! thankyou in advance!!!
Click here to see answer by jim_thompson5910(28595)

Question 207796: Identify the vertex and line of symmetry for y=x^2-8x+11
Click here to see answer by jim_thompson5910(28595)

Question 207777: Three girls, Laura, Tammy, and Jeri can do the chores in 1 hour and 20 minutes. If Jeri did all the chores she would take twice as long as Tammy and 4 hours longer than Laura. How long would each girl take to do the chores alone?
Click here to see answer by Theo(3464)

Question 207812: If 500 kWh cost $57.61, and 1000 kWh cost $108.56, how much does does 713 kWh cost?

Click here to see answer by stanbon(57342)

Question 207776: Loren drove 200 miles at a certain rate, and his wife lois drove 100 miles at a rate 10 mph slower. If Loren had driven for the entire trip, they would have arived 30 minutes sooner. What was Loren's rate?
Click here to see answer by Theo(3464)

Question 207875: I have no idea how to do this one.
Solve for the variable:
4(y-1)squared = 8(y+1)squared
Click here to see answer by jim_thompson5910(28595)

Question 207877: A rectangular pool is 14 metres long and 6 metres wide. It is surrounded by a pebble path of uniform width metres. If the area of the path is , find the width.
Click here to see answer by pjalgeb(9)

Question 207916: Equations Quadratic in form
X^2 + x + (sqrt x^2 + x)- 2 = 0

Click here to see answer by jsmallt9(3296)

Question 207960: How can I do the factoring of the following: N to the forth power minus 4N to the 3rd power plus n minus 4
Click here to see answer by Alan3354(30993)

Question 207960: How can I do the factoring of the following: N to the forth power minus 4N to the 3rd power plus n minus 4
Click here to see answer by stanbon(57342)

Question 207959: How can I do the factoring of the following: N to the forth power minus 4N to the 3rd power plus n minus 4
Click here to see answer by jim_thompson5910(28595)

Question 207957: How to factor 6a^3 Plus 19a^2 Plus 8a minus 5? I have another also - just can't figure how to do it with the extra exponent - thanks
Click here to see answer by Alan3354(30993)

Question 208004: kip wants to fence off 188 ft of rectangular area for a garden. what dimensions should he use? what will be the area of the garden?
Click here to see answer by rfer(12657)

Question 208093: use the quadratic formula to solve the equation 5x2(squared) -6x -8=0
Click here to see answer by jim_thompson5910(28595)

Question 208167: Factor by grouping: 3x3 + 15x2 - 4x – 20.

Click here to see answer by stanbon(57342)

Question 208165: How would I turn this quadratic into turning point form?
Click here to see answer by nerdybill(6958)

Question 208189: How do I find the equation that has the solutions -10, 4 ??
Click here to see answer by scott8148(6628)

Question 208259:
Hi, I am needing a little help with this algebra....
The base of a triangular sail is 18m shorter than it's height. The area is 140m^2. What is the base & height??
Thanks for any help, I really appreciate it!
Click here to see answer by nerdybill(6958)

Question 208265: Please help me solve this equation.-4*4+((-2)^2-3)^3
Click here to see answer by stanbon(57342)

Question 208267: Please help me solve this equation. 6(x+2)= -4x-48
Click here to see answer by stanbon(57342)

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