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Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 168855: A rod of unknown length is used to measure the dimensions of a rectangular door. The rod is 4 ch'ih longer than the width of the door. The rod is 2 ch'ih longer than the height of the door, ad the same length as the door's diagonal. What are the dimensions of the door?: A rod of unknown length is used to measure the dimensions of a rectangular door. The rod is 4 ch'ih longer than the width of the door. The rod is 2 ch'ih longer than the height of the door, ad the same length as the door's diagonal. What are the dimensions of the door?
Click here to see answer by josmiceli(2029)  |
Question 168739: the area of a square is 21 more than the perimeter. Find the length of a side: the area of a square is 21 more than the perimeter. Find the length of a side
Click here to see answer by jim_thompson5910(9226) |
Question 168679: factor the polynomial.
9x^2-64.
I wasnt sure how to do this since it isnt in the form of ax^2+bx+c=0
hope you can help!! THANKS!: factor the polynomial.
9x^2-64.
I wasnt sure how to do this since it isnt in the form of ax^2+bx+c=0
hope you can help!! THANKS!
Click here to see answer by stanbon(18792) |
Question 168652This question is from textbook Intermediate Algebra
: I just submitted a problem and left a very important segment out which altered it completely, I'm sorry!! No wonder no one could solve it, it was not a full function or equation. I sure appreciate your time but here is the REAL problem that I'm stuck on!! Thank you.
"Solve each equation for the indicated variable"
 Solve for R (E>0)This question is from textbook Intermediate Algebra
: I just submitted a problem and left a very important segment out which altered it completely, I'm sorry!! No wonder no one could solve it, it was not a full function or equation. I sure appreciate your time but here is the REAL problem that I'm stuck on!! Thank you.
"Solve each equation for the indicated variable"
Solve for R (E>0)
Click here to see answer by stanbon(18792) |
Question 168650This question is from textbook Intermediate Algebra
: I apologize for having to ask two questions but they are the only two that I'm totally stumped on. I appreciate your help very, very much!! This also is a quadratic function.
"Solve each equation for the indicated variable"
 Solve for rThis question is from textbook Intermediate Algebra
: I apologize for having to ask two questions but they are the only two that I'm totally stumped on. I appreciate your help very, very much!! This also is a quadratic function.
"Solve each equation for the indicated variable"
Solve for r
Click here to see answer by stanbon(18792) |
Question 168650This question is from textbook Intermediate Algebra
: I apologize for having to ask two questions but they are the only two that I'm totally stumped on. I appreciate your help very, very much!! This also is a quadratic function.
"Solve each equation for the indicated variable"
Solve for rThis question is from textbook Intermediate Algebra
: I apologize for having to ask two questions but they are the only two that I'm totally stumped on. I appreciate your help very, very much!! This also is a quadratic function.
"Solve each equation for the indicated variable"
Solve for r
Click here to see answer by Alan3354(1225) |
Question 168648This question is from textbook Intermediate Algebra
: This particular problem is a more of a quadratic function. I truly wish I could give you some of my calculations but nothing I put together makes sense. I have tried multiplying by the squared denominator, using the square root property but nothing is working! Any help is very much appreciated!!
"Solve each equation for the indicated variable".....
 Solve for R (E > 0)
E squared R is the numerator. (r+R) squared is the denominator.This question is from textbook Intermediate Algebra
: This particular problem is a more of a quadratic function. I truly wish I could give you some of my calculations but nothing I put together makes sense. I have tried multiplying by the squared denominator, using the square root property but nothing is working! Any help is very much appreciated!!
"Solve each equation for the indicated variable".....
Solve for R (E > 0)
E squared R is the numerator. (r+R) squared is the denominator.
Click here to see answer by Alan3354(1225) |
Question 168648This question is from textbook Intermediate Algebra
: This particular problem is a more of a quadratic function. I truly wish I could give you some of my calculations but nothing I put together makes sense. I have tried multiplying by the squared denominator, using the square root property but nothing is working! Any help is very much appreciated!!
"Solve each equation for the indicated variable".....
Solve for R (E > 0)
E squared R is the numerator. (r+R) squared is the denominator.This question is from textbook Intermediate Algebra
: This particular problem is a more of a quadratic function. I truly wish I could give you some of my calculations but nothing I put together makes sense. I have tried multiplying by the squared denominator, using the square root property but nothing is working! Any help is very much appreciated!!
"Solve each equation for the indicated variable".....
Solve for R (E > 0)
E squared R is the numerator. (r+R) squared is the denominator.
Click here to see answer by stanbon(18792) |
Question 168539: 3x^3+x^2-3x-1=0 (The ^3 and ^2 and exponents)
I have tried to factor and pull out the x but I am getting confused with the two different power. I got x=-1, x=-1/3 and x=1 but i dont think i need three answers: 3x^3+x^2-3x-1=0 (The ^3 and ^2 and exponents)
I have tried to factor and pull out the x but I am getting confused with the two different power. I got x=-1, x=-1/3 and x=1 but i dont think i need three answers
Click here to see answer by stanbon(18792) |
Question 168501: painting if 50 feet by 30ft they want to put a border to be 25% of the painting what is the exact width of the border?: painting if 50 feet by 30ft they want to put a border to be 25% of the painting what is the exact width of the border?
Click here to see answer by stanbon(18792) |
Question 168430: I am trying to solve y=x2-6x. so far column x is 0 1 2 3 4 column y is 0 -5 -8 a=1 b=-6 c=0. At school I understood where to get these #s now im lost. not sure how i need to do this: I am trying to solve y=x2-6x. so far column x is 0 1 2 3 4 column y is 0 -5 -8 a=1 b=-6 c=0. At school I understood where to get these #s now im lost. not sure how i need to do this
Click here to see answer by KnightOwlTutor(216) |
Question 168200: Dear sir/ma'am,
I have a question regarding how to solve Quad. Equations.
My brother has homework, and he has been asked to solve a mixed bunch of quad. equations using either factoring, finding the square roots, or using the quadradic formula.
My question is, how do you know which method to use for each problem? Is there a certain way the equation is set up that indicates what type is most proper?
Thank you!: Dear sir/ma'am,
I have a question regarding how to solve Quad. Equations.
My brother has homework, and he has been asked to solve a mixed bunch of quad. equations using either factoring, finding the square roots, or using the quadradic formula.
My question is, how do you know which method to use for each problem? Is there a certain way the equation is set up that indicates what type is most proper?
Thank you!
Click here to see answer by edjones(2391) |
Question 168162: If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?: If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
Click here to see answer by gonzo(444) |
Question 168149: This one has been answered but the answer does not make sense. I emailed the tutor and have not heard back. Will someone please take a look at this for me?
Thanks
A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.: This one has been answered but the answer does not make sense. I emailed the tutor and have not heard back. Will someone please take a look at this for me?
Thanks
A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.
Click here to see answer by Mathtut(373) |
Question 168149: This one has been answered but the answer does not make sense. I emailed the tutor and have not heard back. Will someone please take a look at this for me?
Thanks
A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.: This one has been answered but the answer does not make sense. I emailed the tutor and have not heard back. Will someone please take a look at this for me?
Thanks
A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.
Click here to see answer by nerdybill(1052) |
Question 168149: This one has been answered but the answer does not make sense. I emailed the tutor and have not heard back. Will someone please take a look at this for me?
Thanks
A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.: This one has been answered but the answer does not make sense. I emailed the tutor and have not heard back. Will someone please take a look at this for me?
Thanks
A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.
Click here to see answer by gonzo(444) |
Question 168097This question is from textbook Hall Mercer Intermediate Algebra
: A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.
I have tried W^2 - 3/4W^2 = 28
Also W^2 - (W-1/4)^2=28
Mainly need help on setting up. I am alright after the problem is set up into a math problem rather than a word problem.
ThanksThis question is from textbook Hall Mercer Intermediate Algebra
: A square mat has a uniform red border on all four sides. The rest of the mat is blue. The width of the blue square is three-fourths the width of the entire square. If the area colored red is 28 m squared, determine the lengths of each side of the mat.
I have tried W^2 - 3/4W^2 = 28
Also W^2 - (W-1/4)^2=28
Mainly need help on setting up. I am alright after the problem is set up into a math problem rather than a word problem.
Thanks
Click here to see answer by ptaylor(1326) |
Question 167806This question is from textbook Mathematics for Edexcel IGCSE
: Hi thanks a lot for offering to help this is great.
The question gives me a rectangle with a height of 2x-1 and a width (base) of 3x-1. The question also says the length of a diagonal in the rectangle is the square root of 5. Calculate the area of the rectangle.
Thanks againThis question is from textbook Mathematics for Edexcel IGCSE
: Hi thanks a lot for offering to help this is great.
The question gives me a rectangle with a height of 2x-1 and a width (base) of 3x-1. The question also says the length of a diagonal in the rectangle is the square root of 5. Calculate the area of the rectangle.
Thanks again
Click here to see answer by KnightOwlTutor(216) |
Question 167781: Please can you give me a real world example of a quadratic function? Please.: Please can you give me a real world example of a quadratic function? Please.
Click here to see answer by stanbon(18792) |
Question 167757: If you are looking at a graph of a quadratic equation, how do
you determine where the solutions are?
: If you are looking at a graph of a quadratic equation, how do
you determine where the solutions are?
Click here to see answer by Alan3354(1225) |
Question 167715: How would I complete the square for both x and y and find the equation of the circle for the given equation x^2-8x+y^2+4y-205=0. I also have the same question for the following equation x^2+12x+y^2-14y-204=0.: How would I complete the square for both x and y and find the equation of the circle for the given equation x^2-8x+y^2+4y-205=0. I also have the same question for the following equation x^2+12x+y^2-14y-204=0.
Click here to see answer by jim_thompson5910(9226) |
Question 167558: I am thinking of three consecutive negative numbers. If I multiply the first with the second and then subtract three times the third, the result is 57. What are the numbers?: I am thinking of three consecutive negative numbers. If I multiply the first with the second and then subtract three times the third, the result is 57. What are the numbers?
Click here to see answer by sowmya(18) |
Question 167560: The number of people infected after t days is P = 200 + 5t - t2. Find the number of days until the number of people infected is 176. : The number of people infected after t days is P = 200 + 5t - t2. Find the number of days until the number of people infected is 176.
Click here to see answer by sowmya(18) |
Question 167548: Zarig took part in a 26 mile road race.
a. he ran the first 15 miles at an average speed of x mph. he ran the last 11 miles at an average speed of (x-2)mph. write down an expression,in terms of x, for the time he took to complete the 26 mile race?
b.zarig took 4 hours to complete the race. using your answer to part a, form an quation in terms of x.
c. i) simplify your equation and show that it can be written as
2x^2-17x+15=0
ii) solve the quation and obtain zarig's average speed over the first 15 miles of the race.
pls it would kind enough if you can help me put with this question? : Zarig took part in a 26 mile road race.
a. he ran the first 15 miles at an average speed of x mph. he ran the last 11 miles at an average speed of (x-2)mph. write down an expression,in terms of x, for the time he took to complete the 26 mile race?
b.zarig took 4 hours to complete the race. using your answer to part a, form an quation in terms of x.
c. i) simplify your equation and show that it can be written as
2x^2-17x+15=0
ii) solve the quation and obtain zarig's average speed over the first 15 miles of the race.
pls it would kind enough if you can help me put with this question?
Click here to see answer by stanbon(18792) |
Question 167546: Word problems inolving ratios and poportions, percen, etc..
50 is what pecent of 80?
x * 80/100 = 50
=> x = 500/8 = 62.5
82 of what number is 16?
x/100 * 82 = 16
=> x = 1600/82=800/41 = 19.51: Word problems inolving ratios and poportions, percen, etc..
50 is what pecent of 80?
x * 80/100 = 50
=> x = 500/8 = 62.5
82 of what number is 16?
x/100 * 82 = 16
=> x = 1600/82=800/41 = 19.51
Click here to see answer by sowmya(18) |
Question 167518: A firm can sell X units of a product at a price of P cents per unit, where P = 503 - X
The total costs of production is given by the function T(X) = 500 + 2X.
# Find the number of units to be sold to achieve maximum profit and find the maximum profit.
# What price per unit would the firm be charging at the maximum profit output level? : A firm can sell X units of a product at a price of P cents per unit, where P = 503 - X
The total costs of production is given by the function T(X) = 500 + 2X.
# Find the number of units to be sold to achieve maximum profit and find the maximum profit.
# What price per unit would the firm be charging at the maximum profit output level?
Click here to see answer by stanbon(18792) |
Question 167476: I need to solve by completing the square.I'm not sure how to do 1 half of negative s. The problem is  : I need to solve by completing the square.I'm not sure how to do 1 half of negative s. The problem is
Click here to see answer by jim_thompson5910(9226) |
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