Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 76446: I need help on page #575 on question #20. I need to solve the roots of each quadratic equation using the factoring method, and place the equation in standard form before factoring:
X^2=10x-24
Thanks for your time. =)
Click here to see answer by checkley75(3666) |
Question 76446: I need help on page #575 on question #20. I need to solve the roots of each quadratic equation using the factoring method, and place the equation in standard form before factoring:
X^2=10x-24
Thanks for your time. =)
Click here to see answer by bucky(2189) |
Question 76458: I really need some help - my assignment is due tomorrow night and I have about 6 more problems. Here is one, if someone can help me:
for the function of y = x2 - 6x + 8 what is the equation for the line of symmetry for the graph of this function.
Any help will be so appreciated.
Thanks
Click here to see answer by scott8148(6628)  |
Question 76574: I don't know exactly how to go about solving this one problem. Here's is the question I have to answer. Amanda has 400 feet of lumber to frame a rectangular patio (the perimeter of a rectangle is 2 times length plus 2 times width). She wants to maximize the area of her patio ( area of a rectangle is length times width). What should the dimensions of the patio be, and show how maximum area of the patio is calculated from the algebraic equation. Use the vertex form to find the maximum area. I can only get so far and don't know how to go about solving it.
Click here to see answer by Earlsdon(6294) |
Question 76650: This is an application question which I am not sure how to make into an equation
Engine failure forced Geraldine to pilot her Cessna 150 to an emergency landing. To land, Geraldine's plane glided 17,000 ft over a 15,000 ft stretch of deserted highway. From what altitude did the descent begin?
Click here to see answer by psbhowmick(878)  |
Question 76705: I get so confused with these problems I just don't understand.
It says Solve the Quadratic equations by factoring
(2x-7)(7x+2)=0 And so how would I go about solving this?
turn it into 14x(squared)-45x-14=0??? and then? ugggghh
Some one please help me!!
Thank you for yout time.
Click here to see answer by checkley75(3666) |
Question 76783: I am having trouble finding the particular equation for the quadratic function described in the following situation.
The quarterback is standing on the opponents' 40-yard line. He throws a pass toward their goal line. The ball is 2 meters above the ground when the quarterback lets it go. It follows a parabolic path, reaching its highest point, 14 meters above the ground, as the 20-yard line.
Can you help
Click here to see answer by Nate(3500) |
Question 76791: Solve by completing the square. x^2 -14x +49 = 0
I came up with the answer of 7, 7 for this problem. Is this correct? ______________________________________________________________________-
Solve. (x-2)^2 =7
I came up with two answers for this problem but the answer given for the test has only one and I need some help...Thanks. My answer is x= ,x= . The options for this problem are:
a)+ 51
b)+
c)-2 + 
d)2 +
________________________________________________________________________________
Solve.
I came up with the answer of -3 for this problem. Is this correct? The answer options are:
a)0
b)-2
c)-3
d)No Solution
_____________________________________________________________________________--
Find the distance between (10, 0) and (-1, 0).
I am not sure how to do this...the answers it provids is :
a)9
b)11
c)
D)19
Thanks for your help, it is very much appreciated in advance.
Click here to see answer by checkley75(3666) |
Question 76858: Please help!!! I have tried solving the following problems, but can't seem to understand. Whatever assistance anyone can provide will be greatly appreciated. Thanks in advance.
PG. 575
Using the factoring method, solve for the roots of each quadratic equation. Be sure to place your equation in standard form before factoring.
(14.)x^2 + 3x - 40 = 0
PG. 588
Solve using the quadratic formula. If there are no real roots, say so.
(20.) 3x^2 - 4x + 2 = 0
Click here to see answer by checkley75(3666) |
Question 76879: I need help coming up with a real life situation for the equation:
-4.9x^2+15x+2.1
My teahcer suggested it as being a bridge...but I think it's too steep and I don't know what else it could be. Can you help?! Please.
Click here to see answer by adamchapman(301) |
Question 76900: Hello tutor,
Okay so we are doing quadratic formulas and I get the first half of the steps. I dont understand though, what to do after you get the most simplified square root. I dont know what you are supposed to do with the denominator and the stuff on the outside by the add or subtraction sign. I've looked at tons of websites with just the steps on it, but not words, so i do not understand. If maybe you could clear that up that would be great. Thank you.
Click here to see answer by Edwin McCravy(20054)  |
Question 76887: The perimeter of a triangle is 85 inches. The sides are: 2x, 2x+5, and X squared + 3 Find the legths of the sides.
I though of putting them all together and then factoring, but it wasn't working out. If someone could help me I would really appreciate it.
Thank you very much for your time.
Click here to see answer by jim_thompson5910(35256) |
Question 77062: For the equation x - 2SQRT of X=0 , perform the following:
a) Solve for all values of x that satisfies the equation.
b) Graph the functions y = x and y=2 SQRT of X on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
Graph:
Points of intersection:
Click here to see answer by Edwin McCravy(20054)  |
Question 77203: A=1/2h(B+b)(for b)area of a trapezoid
Hints:
Isolate b on one side of the equals sign
B and b are 2 different variables. B does no = b
There is more than 1 correct answer to this question.
Your answer will be a formula, not a number.
b=
Click here to see answer by Earlsdon(6294) |
Question 77203: A=1/2h(B+b)(for b)area of a trapezoid
Hints:
Isolate b on one side of the equals sign
B and b are 2 different variables. B does no = b
There is more than 1 correct answer to this question.
Your answer will be a formula, not a number.
b=
Click here to see answer by tutorcecilia(2152)  |
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