Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 200005: a farmer has 500m of fencing to build a rectangular enclosure along a river.No fencing is needed along the riverbank.what would be the maximum area enclosed by the fence?what would be the equation?
Click here to see answer by RAY100(1637)

Question 200083: A rectangle has the dimensions 0.7x and 5-3x.What value of x gives the maximum area and what is the maximum area??
Click here to see answer by edjones(8007)

Question 200142: 3x2-6x=0 The 2 is suppose to be above the x...sorry..please help me
Click here to see answer by jim_thompson5910(35256)

Question 200161: What are some main differences between the graphical representation of quadratic equations and linear equations?
Click here to see answer by jim_thompson5910(35256)

Question 200155: I want some solved question of quadratic equation (atleast twenty)
Click here to see answer by vleith(2983)

Question 200139: X2+7X+10=0
Click here to see answer by rfer(16322)

Question 200198: Can you please help me solve this equation.

Click here to see answer by jim_thompson5910(35256)

Question 200198: Can you please help me solve this equation.

Click here to see answer by checkley77(12844)

Question 200195: Can you please help me solve this equation

Click here to see answer by jim_thompson5910(35256)

Question 200197: Can you please help me with this equation

Click here to see answer by jim_thompson5910(35256)

Question 200196: Can you help me with this equation

Click here to see answer by jim_thompson5910(35256)

Question 200192: Can you Please help me with this problem.
x2-2x-13=0
(x2, the x is squared, can't find the key to square it,)

Click here to see answer by jim_thompson5910(35256)

Question 200209: the area of a rectangle is the product of it's length and width and equals 1062. if the length is 5 more than 3 times the width find the width of the rectangle
Click here to see answer by RAY100(1637)

Question 200226: solve
2x^2 - 3x - 2 = 0 using quadratic formula
Click here to see answer by Edwin McCravy(20054)

Question 200227: solve
2x^2 - 3x - 2 = 0 using quadratic formula
Click here to see answer by jim_thompson5910(35256)

Question 200210: If six is added to a number and then subtracted from the same number, the product of the sum and the difference is 189. what is the number?
Click here to see answer by solver91311(24713)

Question 200409: Analytic Geometry
13.a) Draw a triangle with vertices P(-2, -2), Q(2, 4), and R(8, 0).
b) Show algebraically that PQR is a right triangle.
c) Is PQR also an isosceles trianlge? Use algebraic reasoning to justify yopur answer.
Can you please help me with this question and thankss alott?!#@##
Click here to see answer by vleith(2983)

Question 200404: Analytic Geometry
10. Determine the shortest distance from the point (5, 2) to the line represented by y=2x+1. Use a diagram to check your answer.
Can u please help me with this question?
thanksss
Click here to see answer by solver91311(24713)

Question 200407: Analytic Geometry
11. Determine the shortest distance from the origin to the line represented by y=1/2x-2.
Can u please help me ????????????
thanksss
Click here to see answer by vleith(2983)

Question 200402: Analytic Geometry
20. Find the diameter and the area of the cirlce defined by x^2+y^2=64.
Can you please help me and thank you very much!!!##@#$$
Click here to see answer by solver91311(24713)

Question 200518: Trigonometry
67. A road sign shows that a hill has a grade of 8%. What is the angle of inclination of the hill, to the nearest of a degree?
Thanks and i dont understand how to solve it?
Click here to see answer by vleith(2983)

Question 200490: Hi everyone, I would like some help with the following question.
I need to solve the following quadratic expression:
x^2 - 5x - 14 = 0
If someone could show me how and explain with steps that would be great.
Thanks, -Nick.
Click here to see answer by jim_thompson5910(35256)

Question 200483: the difference between two positive numbers is 4. If twice the square of the larger number is added to three times the smaller, the sum is 53. solve. please help. thank you
Click here to see answer by ankor@dixie-net.com(22740)

Question 200417: in canada, medicine and cranbrook are 300Km apart. Harry rides 20 Km per hr faster than yoshi rides his yamaha. find harry's average speed if he travels from cranbrook to medicine hat in 1.1/4 less time than yoshi.
Click here to see answer by ankor@dixie-net.com(22740)

Question 200640: Is it possible for a rectangle with a perimeter of 68cm to have an area of 132cmsquare...?using the discriminent formula of bsquare-4ac?
Click here to see answer by Alan3354(69443)

Question 200398: Analytic Geometry
13. On a street map, the coordinates of the two fire stations in a town are A(10, 63) and B(87, 30). A neighbor reports smoke coming from the kitchen of a house at C(41, 18).
a) Whic fire station is closer to this house?
Can you please help me with this question? Thanks>>
Click here to see answer by Alan3354(69443)

Question 200469: (x-a)(x-b)
8 ,1
2, 2
Click here to see answer by Alan3354(69443)

Question 200600: Find a real-life application of a quadratic function. State the application, give the equation of the quadratic function, and state what the x and y in the application represent. Choose at least two values of x to input into your function and find the corresponding y for each. State, in words, what each x and y means in terms of your real-life application.
Click here to see answer by Alan3354(69443)

Question 200737: I need help with this. I am thoroughly confused as to what is being asked:
Evaluate the functions for the values of x given as 1,2,4,8, and 16. Rank in order from fastest to slowest the rate at which each function changes with increasing values of x.
a) f(x)=2x-5
b) f(x)=x^2-4x+3
c) f(x)=x^3+4x^2-2x-3
d) f(x)=7^x
e) f(x)=log x
Click here to see answer by Alan3354(69443)

Question 200465: Quadratic equation: Why do you think the discriminant works.
Click here to see answer by RAY100(1637)

Question 200758: x^2-36=0
Click here to see answer by rfer(16322)

Question 200758: x^2-36=0
Click here to see answer by jim_thompson5910(35256)

Question 200756: 2h^2-h-3=0
Click here to see answer by jim_thompson5910(35256)

Question 200779: 7) The path of a falling object is given by the function where represents the initial velocity in ft/sec and represents the initial height in feet.
a) If a rock is thrown upward with an initial velocity of 64 feet per second from the top of a 25-foot building, write the height (s) equation using this information.
Typing hint: Type t-squared as t^2
Answer:
b) How high is the rock after 1 second?
Answer:
Show your work here:

c) After how many seconds will the graph reach maximum height?
Answer:
Show your work here:

d) What is the maximum height?
Answer:
Show your work here:
Click here to see answer by Alan3354(69443)

Question 200795: 3. A rectangular garden with an area of 96m^2 is 4m longer than it is wide. Find its dimensions. (Label the diagram. Solve using a quadratic eqaution!)
Thank you very much!!!!
Click here to see answer by jim_thompson5910(35256)

Question 200796: Trigonometry
4. A building stands 12 metres away from the balcony of Devon's apartment. From his balcony, the angle of elevation to the top of the building is 65 degrees, and the angle of depression to the bottom of the building is 40 degrees. How tall is the building?
Thanks!!!!
Click here to see answer by stanbon(75887)

Question 200858: Throwing a wrench. An angry construction worker throws
his wrench downward from a height of 128 feet with an
initial velocity of 32 feet per second. The height of the
wrench above the ground after t seconds is given
by S(t) = -16t2 - 32t + 128.
a) What is the height of the wrench after 1 second?
b) How long does it take for the wrench to reach the
ground?

Click here to see answer by jim_thompson5910(35256)

Question 200863: 1. 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. ( is the day tickets go on sale).

Tickets= -0.2x^2+12x+11
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?

Click here to see answer by solver91311(24713)

Question 200869: a(a+1)-3(a+1)=a+1
Click here to see answer by jim_thompson5910(35256)

Question 200881: Find a quadratic funtion in the form y=ax^2+bx+c That passes through the points (-3,-13),(-1,-1),(2,32)
Click here to see answer by ankor@dixie-net.com(22740)

Question 200931: a second order equation in the form of y = ax^2 + bx + c . given and x value how would i determine a,b,and c respectively
Click here to see answer by rfer(16322)

Question 200884: find the quadratic function in the the form y=ax^2+bx+c that passes through the points (1,254),(3,316),(4,249) thanks for the help!
Click here to see answer by solver91311(24713)

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