Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 23947: find the quotient and remainder (if there is one)

(w^3 + 2w^2 � 3) / (w � 2)
Click here to see answer by elima(1433)

Question 23932: Solve the proportion
9/4 = (2x+1)/(x+2)
Click here to see answer by elima(1433)

Question 24019: Solve this: please give me a step by step solution.
Click here to see answer by longjonsilver(2297)

Question 24046: -1/5x-8=4x=3
Click here to see answer by longjonsilver(2297)

Question 24065: the greater of two consecutive integers is 10 less than twice the smaller?
find the integers.
Click here to see answer by Paul(988)

Question 24062: I am learning basically how to graph quadratic equations. I dont really understand how to find the coordinates of the vertex. I also dont understand how to write an equation of the axis of symmetry. Can you please help me?
Click here to see answer by AnlytcPhil(1806)

Question 24085: I need to solve this equation by factoring. x^3+5x^2-6x=0? So far, i have (x^2-?)(x+?), but i don't quite understand the factoring part for this equation. Please help.
Click here to see answer by rapaljer(4671)

Question 24105:
Click here to see answer by rapaljer(4671)

Question 24148: can i please get the answer to this7/4+(-1/3)
Click here to see answer by queenofit(120)

Question 24204: how do you plot the table?
Click here to see answer by elima(1433)

Question 24310: 5=6/x+2
Click here to see answer by elima(1433)

Question 24374: I am taking college Algebra for the first time and since math has always been my worst subject I need all the help I can get. I thank you in advance for all your help.
Using the quadratic equation x squared -4x-5=0, perform the following tasks:
Solve by factoring: (I got x=5 or x=1)
Solve by completing the square:
Solve by using the quadratic formula:
I submitted this before but never recieved an answer back. I think I may have submitted it wrong. Again thank you for your help. BTW this is all part of the first question.
Click here to see answer by yhtong(11)

Question 24419: vertex standard form?
1. y=x^2-4x-5 ?put this function in the form y=a(x-h)+k.

2. What is the line of symmetry?

3. Graph th function using the equation in part a, explain why it is not necessary to plot points to graph when using y=a(x-h)^+k? Explanation of graphing?
4. In a few sentances describe how this graph compares to the graph of y=x^?
Click here to see answer by mathnuts(1)

Question 24446: The length of a rectangle is 4 m more than the width. The area of the rectangle is 45 m(squared). find the length and width.
Click here to see answer by Paul(988)

Question 24521: Please show me how to solve this problem by completing the square.
Click here to see answer by Earlsdon(6294)

Question 24534: Totally lost with quadratic equations, can you please show me how to solve
(x-4)^2 = -81
I have been through the book and notes several times and cannot figure out which method to use.
Thank you in advance for your help.
Click here to see answer by longjonsilver(2297)

Question 24533: These quadratic equations are kicking my rear, please help. How do I find the Vertex and intecepts of:
y = -x^2 + 6x -11
Thanks
Click here to see answer by longjonsilver(2297)

Question 24566: Please show me step by step how to solve the following quadratic equation:
(x-6)^2 = 10
Thanks
Click here to see answer by Earlsdon(6294)

Question 24543: suppose you throw a basebal straight up at a velocity of 64 ft per second.A funtion can be created by expressing distance above the ground, s , as a function of time, t. this function is (< 16 represents 1/2 g,gravitational pull in ft per second^2.
v0is the inital velocity in ft per second
so is intial distance above ground in ft. if you are stading on the ground , then s0= zero.
what is the function descibing this problem?
how high above the ground will the ball be after one sec?
how long will it take to hit the ground?
what is the maximum height and time attained by the ball?

Click here to see answer by Earlsdon(6294)

Question 24591: Randy is building a fence at the side of his warehouse. He has 120 m of fencing and plans to use the side of the warehouse as one side of the rectangular fenced area. What are the dimensions of the maximum area Randy can enclose?
* I REALLY NEED HELP WITH THIS>.its due tomorrow
Click here to see answer by josmiceli(19441)

Question 24645: for the eqation x-square root of x=0 solve for values of x,then graph y=x and y=square root of x
Click here to see answer by quentin252(19)

Question 24655: Suppose you travel north for 35 kilometers then travel east 65 kilometers. How far are you from your starting point?
How do you solve an equation like this?
Click here to see answer by josmiceli(19441)

Question 24570: Can you please help me do this problem? I have no example in my book.
2(x-1)squared=-16
Click here to see answer by stanbon(75887)

Question 24742: How do i solve by using the quadratic formula of x2 - 4x - 5 = 0
Click here to see answer by Alwayscheerful(414)

Question 24740: how do i Solve by completing the square of x2 - 4x - 5 = 0
Click here to see answer by rapaljer(4671)

Question 24750: 3) Suppose you throw a baseball straight up at a velocity of 64 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
� 16 represents 1/2g, the gravitational pull due to gravity (measured in feet per second2).
� v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
� s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a) What is the function that describes this problem?
b) The ball will be how high above the ground after 1 second?
c) How long will it take to hit the ground? What is the maximum height of the ball? What time will the maximum height be attained?
Click here to see answer by rapaljer(4671)

Question 24772: I need to be able to explain how Pythorean Theorem works in my own words to my math class. I understand it but I'm not sure how to explain it to other people. Can you help me?
Click here to see answer by longjonsilver(2297)

Question 24745: For the function y = x2 - 4x - 5, perform the following tasks:
a) Put the function in the form y = a(x - h)2 + k. Can you please give me the answer?

Click here to see answer by Earlsdon(6294)

Question 24850: I REALLY NEED THE ANSWER IN DETAIL TO THIS PROBLEM..ITS DUE TOMORROW and its very important. THANK YOU
* A window in a bulinging is 18m above the ground. From this window, the angle of elevation to the top of the building across the street is 40� and the angle of depression to the bottom of the building acress the street is 42�. How tall is the building across the street? Include a labelled diagram with you solution.
Click here to see answer by venugopalramana(3286)

Question 24818: I REALLY NEED THE ANSWER IN DETAIL TO THIS PROBLEM..ITS DUE TOMORROW and its very important. THANK YOU
* A window in a bulinging is 18m above the ground. From this window, the angle of elevation to the top of the building across the street is 40� and the angle of depression to the bottom of the building acress the street is 42�. How tall is the building across the street? Include a labelled diagram with you solution.
Click here to see answer by venugopalramana(3286)

Question 24873: 3) Suppose you throw a baseball straight up at a velocity of 64 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
16 represents 1/2g, the gravitational pull due to gravity (measured in feet per second2).
v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a) What is the function that describes this problem?
Answer:

b) The ball will be how high above the ground after 1 second?
Answer:
Show work in this space.

c) How long will it take to hit the ground?
Answer:
Show work in this space.

d) What is the maximum height of the ball? What time will the maximum height be attained?
Answer:
Show work in this space.

Click here to see answer by wuwei96815(245)

Question 24872: 1. 7(1+5y)+8y
2. (6m+9)4+5m
Click here to see answer by elima(1433)

Question 24915: Hi,
I would like to know why is 2x3+6x-1 is not a quadratic funtion
Click here to see answer by kev82(151)

Question 25075: **im just wondering if someone can help me out with this trig. problem...i really dont know what to do and its due tomorrow!... thanks
A window in a building is 18m above the ground. From this window, the angle of elevation to the top of the building across the street is 40degrees and the angle of depression to the bottom of the building across the street is 42degrees. How tall is the building across the street? Include a labelled diagram with your solution.
Click here to see answer by Paul(988)

Question 25074: **im just wondering if someone can help me out with this trig. problem...i really dont know what to do and its due tomorrow!... thanks
A window in a building is 18m above the ground. From this window, the angle of elevation to the top of the building across the street is 40degrees and the angle of depression to the bottom of the building across the street is 42degrees. How tall is the building across the street? Include a labelled diagram with your solution.
Click here to see answer by venugopalramana(3286)

Question 25096: please explaen me how to solve this equations
7n+2=4n+17

-2k+19=3k-1
Click here to see answer by Earlsdon(6294)

Question 25163: One endpoint of a line segment is (-3,-4). If the midpoint of the segment is at the origin, what are the coordinates of the other endpoint?
Click here to see answer by wuwei96815(245)

Question 25152: The perimeter of a rectangle is 80 feet. The length of the rectangle is 2 feet less than 5 times the width. What is the length and width of the rectangle?
Click here to see answer by quentin252(19)

Question 25149: The perimeter of a triangle is 43 inches. The second side is three inches longer than the first side. The third side is one inch longer than the second. Find the length of each side.
Click here to see answer by wuwei96815(245)

Question 25142: Hi, I am a mother trying to assist my son in studying for a test. We are working on "Quadratic Equations and Functions". Here is the question.... Graph the function. If a>0 find the minimum value. If a<0 find the maximum value. Graph below
Click here to see answer by queenofit(120)

Question 25337: 8x-12

AND TELL ME HOW TO FIGURE EM OUT CUZ I RIPPED OUT MY HAIR AND BALLS TRYING
Click here to see answer by longjonsilver(2297)

Question 25389: How do I solve this one:
Sally was making a peanut butter and jelly sandwich. Sally cut off 1cm off each edge of the bread. If the bread is a square and the area removed was 32 cm^2 what is the length of a side of the sandwich (now that the 1 cm was removed)
I have tried using (x-1)(x-1) = 32 cm, but I already have been told an answer of "7" by my teacher. I cannot get the quadratic equation, when the coefficients are plugged in, to work and render '7'. Thanks.

Click here to see answer by stanbon(75887)

Question 25346: Hello good sir,
I have a kunundrum about these equations...
how do i factor these fully
x2-81 , x2-25=0 , and x2-2x-15=0
thank you kind samaritan for doing this, and if u finish these for me u shall earn a seat at my round table.
Click here to see answer by elima(1433)

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