Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 142588: i am trying to solve the following quadratic equation, however i am unsure of how exactly to rearrange the equation in order to solve it correctly.?????
x^2 - 6x = 10 + 4x
can you help????
Click here to see answer by vleith(2983)

Question 142648: The equation y= -1777x + 27,153 can be used to predict the number y of gun deaths in the United States x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 is 2004 and so on. Predict the number of gun deaths in the year 2004 and 2007 and predict in what year the number of gun deaths will be 11,160Predicted gun deaths in 2000 and 2004 would be?? And what year will there be 11160 gun deaths?
How do I figure this out???? I was doing so good now am stuck again.
Will someone please help with this word problem??
Click here to see answer by checkley77(12844)

Question 142656: Use the intercepts to graph the equation.
x + 3y = 6
HELP PLEASE!!

Click here to see answer by checkley77(12844)

Question 142657: 8x= -56
Solve using the multiplication principle.
Would the answer be -7? Or am I way off again??
Click here to see answer by checkley77(12844)

Question 142663: -7x > 1/15
Solve using the multiplication principle. Will someone please help with this, this is my last one that I really do NOT understand. I am going to try to figure out some of the others with things I have learned from all of you here. Thanks again for your help everyone!!
Click here to see answer by vleith(2983)

Question 142661: Find the slope if it exsists. m=? Help me with this? The slope is -5?
x = -5
Click here to see answer by vleith(2983)

Question 142700: solve -m squared= -81
(i couldnt figure out how to make the square symbol)

Click here to see answer by stanbon(75887)

Question 142709: Find the vertex of the graph of the quadratic function.
f (x)=-x^2-10x-7
I'm not sure what to do here. Could you please tell me where to start and what I'm doing? Thanks
Click here to see answer by oscargut(2103)

Question 142653: Solve by the substitution method.Type an ordered pair,the solution of the system is???
4x + 3y = -14
x = 5 - 5y
Help please.
Click here to see answer by oscargut(2103)

Question 142652: -23 <_ 4x -6 <_ -5
The solution is {xl?<_x<_?}
Will someone show me how to do this correctly? PLEASE??
Click here to see answer by oscargut(2103)

Question 142718: Im having some trouble with this one. I know how to put the problem in the right order but the y/2 has me confused. So I would appreciate help solving this one. Here it is: y^2+y/2=-3/2 The only thing I was sure about was putting it into the correct form: y^2+y/2+3/2
Click here to see answer by Edwin McCravy(20054)

Question 142711: find the vertex of the graph of the quadratic function.
x/(x-2) - 4/(x^2-4x+4)
I'm just not sure what I'm supposed to be doing or where to start.
Click here to see answer by edjones(8007)

Question 142754: Solve by
the quadratic formula
4 + 4x = 2x to 2nd power
Click here to see answer by checkley77(12844)

Question 142744: this is a word problem. The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures sqrt6m. find the width and height.
I'm not sure how to set this up to solve it. Can you help? Thanks, Anne
Click here to see answer by jojo14344(1513)

Question 142742: this problem states to find b^2-4ac and the number of real solutions to each equation.
4m^2+25=20m this is what I did 4m^2+25-20m=0
a=4 b=-20 c=25
(-20)^2 -4(4)(25) = 400-400= 0
Is there any other solution to this equation and if there is what do I do to find it? Thank you for your help. Anne
Click here to see answer by scott8148(6628)

Question 142778: Thank you in advance for your help. It is appreciated. My word problem is: One leg of a right triangle is 4 inches longer than the other leg. If the length of the hypotenuse is 20 inches find the length of each leg.
Click here to see answer by jojo14344(1513)

Question 142906: this problem isn't from a book. It simply says "solve"
a^4-5a^2+4=0 Can you help me with this? Thank you, Anne
Click here to see answer by vleith(2983)

Question 142779: Thank you in advance for your help with this problem. A piece of wire 60 inches long is cut into tow pieces and then each piece is bent into the shape of square. If the sum of the areas of the two squares is 117 square inches find the length of each piece of wire.
Click here to see answer by checkley77(12844)

Question 142922: 8d fewer than 6 out of the next 20 business days. If this actually happened, might it shake you confidence in the statement p = 0.60? Might it make you suspect that p is less than 0.60? Explain.
8e more than 17 of the next 20 business days. If this actually happened, might you suspect that p is greater than 0.60? Explain.

This problem has me so stumped if you could help I would be very greatful
Click here to see answer by stanbon(75887)

Question 142943: I have tried this for hours and I need help
(6x^4-2)(x^5-7) I am sop confused on the foil method please help
Diane
Click here to see answer by jim_thompson5910(35256)

Question 142921: HELP
a)solve 4x^2=12 I have to find x for this one
b)Find the intercepts of f(x)=4x^2-12
I am totally lost on this
Thanks
Click here to see answer by Earlsdon(6294)

Question 142961: The process of writing a quadatic equation in the form (x + a)2nd power = b is called
Click here to see answer by stanbon(75887)

Question 142945: I can not figure out how to write a quadriatic equation where the answer is 3 ax^2+bx+c=0 is the formula
Thanks
Diane
Click here to see answer by Earlsdon(6294)

Question 142946: Need some help in finding the domain of g(x)=2x+1/x-7. Thanks
Click here to see answer by tutorcecilia(2152)

Question 143077: What are the steps needed to solve this equation 4(9x - 1) = 9x(4 - x)
Click here to see answer by stanbon(75887)

Question 143105: 3x+y=-4
Click here to see answer by jim_thompson5910(35256)

Question 143100:
a. Solve using the quadratic formula: x^2-6x-7=0
Click here to see answer by jim_thompson5910(35256)

Question 143114: Find the slope, if it exists of the line containing the pair of points
(2, 5) and (3, -9)
The slope m = ?
Will someone please help me with this I do not understand.
Click here to see answer by Earlsdon(6294)

Question 143110: Find the domain of the function.
p(x)=x2-2x+7 (the 2 by the x is a little 2 that is above the x, not a regular number 2)
Will someone help please, how do I figure this out? The =x2 actually equls 4?is that correct? HELP.
Click here to see answer by oscargut(2103)

Question 143158: Solve using the quadratic formula:
y^2-3y-10=0
Click here to see answer by checkley77(12844)

Question 143109: I have a few more questions today, and I really need your help please. Thank you all for your past help it is really appreciated and lots of help to me. Thanks again!!!
The function H described by H(x) = 2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus bone is X cm long. Predict the height of a woman whose humerus is 33 cm long. Do I add the 2.75+71.48 then dived by 33?? I do not understand this makes no sense will someone please help me??
Click here to see answer by checkley77(12844)

Question 143173: I,need some help in solving these problem,here i'm looking for the domain in these two problem. g(x)=log(x+3) and g(t)=In(t-1).Could you please help me in finding the answer? Thanks :)

Click here to see answer by oscargut(2103)

Question 143113: Solve the system of equations by graphing. Then classify the system as consistant or inconsistant, dependent or indepenent?
9x-9y=63
9y-9x=-63
Help me please with this one.
Click here to see answer by MathTutorer(13)

Question 143086: Is it possible to have different quadratic equations with the same solution?
Click here to see answer by pcsp_kumat(6)

Question 143265: Graph the equation y=4. Now with this I would simply put the point on the 'y' line on a graph. That is the up and down line not the straight across right??
Click here to see answer by jim_thompson5910(35256)

Question 143264: y - 5 > -17
Is the answer -12? and I also have to graph this also. Would the graph be an [ on the -12 on the graph line and the arrow point towards minus -13, and -14 ect? Or is it not the [ or a ), ( instead? So cinfused with these. Help please.
Click here to see answer by jim_thompson5910(35256)

Question 143293: I am confused. o.k. the problem is xsquared+7x+9=0 i do not get how to find the vertex . i know it has to do with the it being max or miminmum . right ?
Thanks for the help !!
- confused

Click here to see answer by stanbon(75887)

Question 143295: what are the steps to solving quadratic equations by using the quadratic formula??
like what to do is steps (step 1,step 2,step 3..............
Click here to see answer by checkley77(12844)

Question 143280: A rectangular painting has dimensions X and X+10. the painting is in a frame 2 in. wide. The total area of the picture and the frame is 900 in^2. What are the dimensions of the painting?
Click here to see answer by checkley77(12844)

Question 143330: Which of the following pair of points is indicative of a zero per the Intermediate Value Theorem?
a. (0,0) and (2,-3)
b. (-2,-3) and (2,3)
c. (2,0) and (0,-3)
d. (3,-4) and (-6,12)
Click here to see answer by stanbon(75887)

Question 143403: 50-word response to the following: How do you know when an equation has infinitely many solutions? How do you know when an equation has no solution?
Will someplease explain this to me in just plain old english so that I understand it?
Click here to see answer by solver91311(24713)

Question 143425: I need your help how do you solve x^2-2x-9=0

Click here to see answer by mathgeek102(3)

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