Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 463988: Find all x- intercept:
f(x)=24x^3-14x-20x
Please show me step by step to get the answer. Thanks
Click here to see answer by lwsshak3(6519)

Question 463980: evaluate the discriminant, and predict the type and number of solutions.
s^2+2s+5=0
Click here to see answer by lwsshak3(6519)

Question 464481: find the value of x if p+7=0,q-12=0 and x^2+px+q=0
Click here to see answer by richard1234(5390)

Question 464480: find the value of x if p+1=0 and x^2+px-6=0
Click here to see answer by jjordan95(63)

Question 463543: it costs a company $30 to produce 2 widgets,$118 to produce 4 widgets,$766 to produce 10 widgets.how much does it cost to produce 6 widgets?
Click here to see answer by lwsshak3(6519)

Question 463912: I would sincerely appreciate it if you could please help me solve this grade 11 math equation: 23/(x-1) + 3 - 70/(x^2-4x+3) = 0
I know that when (x^2-4x+3) is factored, it becomes (x-1)(x-3), and that I need to get rid of the denominator to solve the question, but I'm experiencing some difficulty finishing the question.
Click here to see answer by lwsshak3(6519)

Question 464479: find the vaalue of xif p+1=0 and x^2+px-6=0
Click here to see answer by lwsshak3(6519)

Question 463853: WHAT IS THE EQUATION OF THE QUADRATIC FUNCTION WITH ROOTS -8 AND -6"A"LESS THEN ZERO AND A VERTEX A (-7,2)
Click here to see answer by lwsshak3(6519)

Question 462493: In a suspension bridge the shape of the suspension cables is parabolic. The bridge shown in the figure has towers that are 600 m apart and the lowest point of the suspension cables is 150 m below the top of the towers. Find the equation of the parabolic part of the cables by placing the origin of the coordinate system at the vertex.
Click here to see answer by lwsshak3(6519)

Question 464593: Solve:

Click here to see answer by ewatrrr(10682)

Question 464596: 49y^2+112y-211=0 solve using the quadratic formula
Click here to see answer by ewatrrr(10682)

Question 464600: What steps do I take to find all the rational zero's of the function,
f(x)=10x^25+3x^17-35x+6?
So far I have found the factors of six. I have started to divide by 2, and these numbers look odd.
Thank you
Click here to see answer by stanbon(57387)

Question 464842: Please help me solve:
6a^2-ab-15b^2
Click here to see answer by amoresroy(333)

Question 464869: Hello. Can you help me answer the following?
"Find the vertex, the line of symmetry, and the maximum or and minimum value of f(x). Graph the function".
f(x)=1/5(x+9)^2+5
Thanks for your help!
Click here to see answer by stanbon(57387)

Question 464925: What is the factored form of 7x^2+ssx+42 using quadraatic formula
Click here to see answer by Edwin McCravy(8909)

Question 464963: solve for x: 6x^2=23x-15
Click here to see answer by Gogonati(809)

Question 464963: solve for x: 6x^2=23x-15
Click here to see answer by edjones(7569)

Question 465145: suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. (x=1 is the day tickets go on sale.
Tickets = -0.2x sqrt + 12x + 11
a does the graph of this equation open up or down? How did you determin this?
b. Describe what happens to the tickets sales as time passes.
c. use the quadratic equation to determin the last day that tickets will be sold.
Note. Write your answer in terms of the number of days after ticket sales begin.
d. Will tickets peak or be at a low during the middle of the sale? How do you know?
e. After how many days will the peak or low occur?
f.how many tickets will be sold on the day when the peak or low occurs?
g. what is the point of the vertex? How does this number relate to your answers in parts e and f?
h. how many solutions are there to the equation -0.2x sqrt + 12x 11=0? How do you know?
i. What do the solutios represent? Is there a solution that does not make sense? If so, in what ways does the solution not make sense?
Click here to see answer by ewatrrr(10682)

Question 465235: Hi, here's a question for you:

18x^2+5x-9=0
Click here to see answer by Ryan O(12)

Question 465235: Hi, here's a question for you:

18x^2+5x-9=0
Click here to see answer by richard1234(5390)

Question 465299: Find all the real solutions of the following equation as a quadratic equation.
6n^2/3 + n^1/3 - 15 = 0
Click here to see answer by lwsshak3(6519)

Question 465296: find the zeros of the quadratic function using the square root method h(x)=(x+6)^2-36
Click here to see answer by lwsshak3(6519)

Question 465431: For the following equation, state the value of the discriminant and then describe the nature of the solutions:
18x^2+5x-9=0
1. What is the value of the discriminant?
2. Are there two imaginary solutions?
3. Are there two real solutions?
4. Only one real solution?
Thanks for the help!
Click here to see answer by stanbon(57387)

Question 465444: How do you create a quadratic equation if you only have the solutions? I am really not getting the quadratic equation math at all. Example if I have theses two numbers, 8 and 4/5 as solutions to create a quadratice equation.
Click here to see answer by josmiceli(9697)

Question 465503: you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. ( is the day tickets go on sale).

a. Does the graph of this equation open up or down? How did you determine this?

b. Describe what happens to the tickets sales as time passes.
c. Use the quadratic equation to determine the last day that tickets will be sold.
Note. Write your answer in terms of the number of days after ticket sales begin.

d. Will tickets peak or be at a low during the middle of the sale? How do you know?

e. After how many days will the peak or low occur?

f. How many tickets will be sold on the day when the peak or low occurs?

g. What is the point of the vertex? How does this number relate to your answers in parts e. and f?

h. How many solutions are there to the equation ? How do you know?

i. What do the solutions represent? Is there a solution that does not make sense? If so, in what ways does the solution not make sense?

Click here to see answer by richard1234(5390)

Question 465721: If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?
Click here to see answer by ewatrrr(10682)

Question 464739: I am having trouble with finding the x - intercepts for p(x)=-x^2+812-9600
Click here to see answer by sofiyac(695)

Question 465553: A river has a current of 5mph. It takes Al half an hour longer to paddle upstream 1.2 miles than to paddle downstream the same distance. What is Al's rate in still water.

Setting word problems up always seems to be more difficult than setting them up. I need to find a quadratic equation then solve with this problem.
Click here to see answer by ankor@dixie-net.com(15660)

Question 465533: Solve the quadratic equation x2 - x = 30 by completing the square
Click here to see answer by ankor@dixie-net.com(15660)

Question 465854: Solve x=3 & x=9
Click here to see answer by stanbon(57387)

Question 465858: Solve
Click here to see answer by kingme18(98)

Question 465873: Hi I'm working on a take home test right now & i need your help!
my problem is
i believe iv found ..
Vertex: (-3,4)
axis of symmetry: -3
y-intercept: (0,5)
&
Domain: all real #s
..but im not sure my answers are right ..?
and im not sure on how to find the x-intercept and the range!? could someone please help me..
Click here to see answer by Edwin McCravy(8909)

Question 465920: Last month, Jacob traveled from Miami to New Orleans by train and made two stops along the way. The average speed for the three legs of his trip is defined as v1, v2, v3 respectively. The average speed for the entire trip is given by
3
____________
1---1---1
__ + ___ + __
v1----v2----v3
a. Simplify the complex fraction.
b. Find the average speed for the entire trip when v1 = 101mph, v2 = 71mph,
v3 = 106mph. Round to the nearest mph.

Click here to see answer by robertb(4012)

Question 465919: Simplify the variable expression below.
(1/9a) - (2/3a)
a. -5/18a
b. -5/9a
c. 7/9a
d. 5/9a
e. -7/9a
Click here to see answer by robertb(4012)

Question 465915: Find all the real solutions of the following equation as a quadratic equation.
6n^2/3 + n^1/3 - 15 = 0

Click here to see answer by robertb(4012)

Question 465985: I can't solve this problem can you help
x=5 x=2
and
x=1 x= -4
Click here to see answer by sofiyac(695)

Question 465916: 4/2x+1 - 2/x-2 = 1/2x+1 Solve rational equation
a.-10
b.-17
c.-5
d.-8
e.-3
Click here to see answer by sofiyac(695)

Question 466065: This on states, solve by completing the square:
m^2 - 1/2m = 7/2
Click here to see answer by ewatrrr(10682)

Question 466075: X= 5 X=2 and X=1 X= -4
Click here to see answer by sofiyac(695)

Question 466075: X= 5 X=2 and X=1 X= -4
Click here to see answer by Alan3354(30993)

Question 465855: solve 3x & -3x
Click here to see answer by richard1234(5390)

Question 466249: Problem Solving: A sunflower plant was purchased with the following growth guarantee. After being planted, on the first day it would grow 100 mm. On the second day its height would increase by one half (50%), on the third day by one third, on the fourth day by one fourth, and so on. Assuming that the plant actually grows according to the guarantee, how many days would it take for it to reach its maximum height of 5000 mm?
Click here to see answer by ankor@dixie-net.com(15660)

Question 466380: 2.
(A)Write the quadratic function f(x)=x²-6x+14 in the form f(x)=a(x-h)²+k by completing the square and
(B)graph the function.
Please show all of your work. Submit your graph.
Click here to see answer by lwsshak3(6519)

Question 466415: the manager of farmer's delight bought a load of watermelons for $750 and priced the watermelons so that he would make a profit of $2 on each melon. when all but 100 of the melons haad been sold, he broke even. how many did he buy originally?
Click here to see answer by solver91311(16897)

Question 466382: 4. Determine the quadratic function,f(x)=ax²+bx+c , whose vertex is (1, -2) and passes through the point (-1, -22). Please show all of your work. (Points : 5)
Click here to see answer by solver91311(16897)

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