Questions on Algebra: Quadratic Equation answered by real tutors!

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Tutors Answer Your Questions about Quadratic Equations (FREE)


Question 201986: Hiiii,, Could you please help me about this?!I solved it but the answers was undefined!!!!Also could you tell me what is the discriminant?Thanksss
By examination of the discriminant, determine the nature of the roots for the following equation:
7x^2+10x+5=0
: Hiiii,, Could you please help me about this?!I solved it but the answers was undefined!!!!Also could you tell me what is the discriminant?Thanksss
By examination of the discriminant, determine the nature of the roots for the following equation:
7x^2+10x+5=0

Click here to see answer by jim_thompson5910(12548) About Me 
Question 201986: Hiiii,, Could you please help me about this?!I solved it but the answers was undefined!!!!Also could you tell me what is the discriminant?Thanksss
By examination of the discriminant, determine the nature of the roots for the following equation:
7x^2+10x+5=0
: Hiiii,, Could you please help me about this?!I solved it but the answers was undefined!!!!Also could you tell me what is the discriminant?Thanksss
By examination of the discriminant, determine the nature of the roots for the following equation:
7x^2+10x+5=0

Click here to see answer by vleith(1707) About Me 

Question 201983: Solve for x: (x+3)^2=5. thanks for your help.: Solve for x: (x+3)^2=5. thanks for your help.
Click here to see answer by jim_thompson5910(12548) About Me 

Question 201982: solve for x: (x+3)^2=5. thanks for your help.: solve for x: (x+3)^2=5. thanks for your help.
Click here to see answer by jim_thompson5910(12548) About Me 

Question 201981: Find the sum of the x solutions for x^2-x=12. thank-you.: Find the sum of the x solutions for x^2-x=12. thank-you.
Click here to see answer by jim_thompson5910(12548) About Me 

Question 201970: Can anyone help me with any of these?
1) Ed bought $2,000 in stock shares one week before the stock price dropped $10.00. If he had waited for the price setback, he could have bought 10 more shares for the same amount. How much did each share actually cost, and how many shares did he buy?
Number of shares purchased:___
Price per share:$_____
2) The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now?
___ years old.
3) One leg of a right triangle is 96 inches. Find the hypotenuse and the other leg if the length of the hypotenuse exceeds 2 times the other leg by 4 inches.
Hypotenuse = ___ inches
leg = ___ inches
: Can anyone help me with any of these?
1) Ed bought $2,000 in stock shares one week before the stock price dropped $10.00. If he had waited for the price setback, he could have bought 10 more shares for the same amount. How much did each share actually cost, and how many shares did he buy?
Number of shares purchased:___
Price per share:$_____
2) The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now?
___ years old.
3) One leg of a right triangle is 96 inches. Find the hypotenuse and the other leg if the length of the hypotenuse exceeds 2 times the other leg by 4 inches.
Hypotenuse = ___ inches
leg = ___ inches

Click here to see answer by rfer(333) About Me 

Question 201939: Hi Please help me answer this hard word problem.
An Airplane whose speed in still air is 530mi/h carries enough fuel for 10 hours of flight. On a certain flight it flies against a wind of 30 mi/h. On the return flight it travels with a wind of 30 mi/h. How far can the plane fly without refueling?
Thank you Very much,
Leo
: Hi Please help me answer this hard word problem.
An Airplane whose speed in still air is 530mi/h carries enough fuel for 10 hours of flight. On a certain flight it flies against a wind of 30 mi/h. On the return flight it travels with a wind of 30 mi/h. How far can the plane fly without refueling?
Thank you Very much,
Leo

Click here to see answer by scott8148(2943) About Me 

Question 201889: Dear tutor,Could you help me to solving this equation please?I do not have any idea to solve it!
x^4-13x^2+36=0
: Dear tutor,Could you help me to solving this equation please?I do not have any idea to solve it!
x^4-13x^2+36=0

Click here to see answer by jim_thompson5910(12548) About Me 
Question 201889: Dear tutor,Could you help me to solving this equation please?I do not have any idea to solve it!
x^4-13x^2+36=0
: Dear tutor,Could you help me to solving this equation please?I do not have any idea to solve it!
x^4-13x^2+36=0

Click here to see answer by checkley77(4731) About Me 

Question 201885: Hi there. I need some help.
solve for x or y.
2x-3y=2
7x-7y=5
I dont understand the -2
: Hi there. I need some help.
solve for x or y.
2x-3y=2
7x-7y=5
I dont understand the -2

Click here to see answer by PRMath(15) About Me 

Question 201886: Please, I need help.
for the line 2x-5y=852
find the slope?
find the slope as a line to it
thanks sooooo much
: Please, I need help.
for the line 2x-5y=852
find the slope?
find the slope as a line to it
thanks sooooo much

Click here to see answer by PRMath(15) About Me 

Question 201805: Find the quadratic equation that has one solution of 5.: Find the quadratic equation that has one solution of 5.
Click here to see answer by vleith(1707) About Me 

Question 201744This question is from textbook Strategies For Problem Solving
: A retailer spen $48 to purchase a number of special mugs. Two of them were broken in the store, but by selling each of the remaining mugs for $3 above the original cost per mug, she made a total profit of $22. Rewrite the equation of (n-2)(3+(48/n))=48+22 in a quadratic equation.This question is from textbook Strategies For Problem Solving
: A retailer spen $48 to purchase a number of special mugs. Two of them were broken in the store, but by selling each of the remaining mugs for $3 above the original cost per mug, she made a total profit of $22. Rewrite the equation of (n-2)(3+(48/n))=48+22 in a quadratic equation.
Click here to see answer by ankor@dixie-net.com(5515) About Me 

Question 201687: solve by completing the square:
b^2-8b-38=10
: solve by completing the square:
b^2-8b-38=10

Click here to see answer by solver91311(4032) About Me 

Question 201690: solve the equation with the quadratic formula:
9m^2=-2
: solve the equation with the quadratic formula:
9m^2=-2

Click here to see answer by RAY100(776) About Me 

Question 201688: solve the equation by taking square root:
8x^2-3=-155
: solve the equation by taking square root:
8x^2-3=-155

Click here to see answer by RAY100(776) About Me 

Question 201740: Solve the equation x^2 + 8x - 2 = 0 using both the quadratic formula and completing the square method.: Solve the equation x^2 + 8x - 2 = 0 using both the quadratic formula and completing the square method.
Click here to see answer by Alan3354(3901) About Me 

Question 201692: sketch the graph of the function
y=2x^2-16x+35
: sketch the graph of the function
y=2x^2-16x+35

Click here to see answer by Alan3354(3901) About Me 

Question 201727: f(x)=3x^2-x+4
find
f(2)
f(2x)
f(x+2)
: f(x)=3x^2-x+4
find
f(2)
f(2x)
f(x+2)

Click here to see answer by solver91311(4032) About Me 

Question 201725: f(x)+3x^2-x+4
find
f(2)
f(2x)
f(x+2)
: f(x)+3x^2-x+4
find
f(2)
f(2x)
f(x+2)

Click here to see answer by solver91311(4032) About Me 

Question 201718This question is from textbook
: This is a word problem and I can't use the perfect square I have to use the quadratic equation
5x7 photo that I have to put on a piece of paper
the area of the mat should equal that of the picture. I have to determine the proper l and width.
5x7 = 35 sp"
(5 + 2x)(7+2x) = 35
answer: l = 10.33 w = 9.33
but it's wrong that is larger than the photo
This question is from textbook
: This is a word problem and I can't use the perfect square I have to use the quadratic equation
5x7 photo that I have to put on a piece of paper
the area of the mat should equal that of the picture. I have to determine the proper l and width.
5x7 = 35 sp"
(5 + 2x)(7+2x) = 35
answer: l = 10.33 w = 9.33
but it's wrong that is larger than the photo

Click here to see answer by Theo(26) About Me 
Question 201718This question is from textbook
: This is a word problem and I can't use the perfect square I have to use the quadratic equation
5x7 photo that I have to put on a piece of paper
the area of the mat should equal that of the picture. I have to determine the proper l and width.
5x7 = 35 sp"
(5 + 2x)(7+2x) = 35
answer: l = 10.33 w = 9.33
but it's wrong that is larger than the photo
This question is from textbook
: This is a word problem and I can't use the perfect square I have to use the quadratic equation
5x7 photo that I have to put on a piece of paper
the area of the mat should equal that of the picture. I have to determine the proper l and width.
5x7 = 35 sp"
(5 + 2x)(7+2x) = 35
answer: l = 10.33 w = 9.33
but it's wrong that is larger than the photo

Click here to see answer by Alan3354(3901) About Me 

Question 201666: FIND THE VALUE OF 'X' BY QUADRATIC FORMULA
1. 9x^2-9(a+b)x+2a^2+5ab+2ab^2=0
2.a^2b^2x-(4b^4-3a^4)x-12a^2b^2=0
I WILL BE THANKFUL
PRIYAL
: FIND THE VALUE OF 'X' BY QUADRATIC FORMULA
1. 9x^2-9(a+b)x+2a^2+5ab+2ab^2=0
2.a^2b^2x-(4b^4-3a^4)x-12a^2b^2=0
I WILL BE THANKFUL
PRIYAL

Click here to see answer by jim_thompson5910(12548) About Me 

Question 201636: Hi, Could you help me to find a way to this problem?!Tanks=)
One number is 6 less than a secound number.The product of the numbers is 48 more than the square of the smaller number.Find the two numbers.
I tryed to solve with this way but i couldnt finish it:
x=y-6
x+y-6=48+y^2
y^2-2y=-60
: Hi, Could you help me to find a way to this problem?!Tanks=)
One number is 6 less than a secound number.The product of the numbers is 48 more than the square of the smaller number.Find the two numbers.
I tryed to solve with this way but i couldnt finish it:
x=y-6
x+y-6=48+y^2
y^2-2y=-60

Click here to see answer by RAY100(776) About Me 

Question 201639: solve the equation with the quadratic formula:
8r^2=9
: solve the equation with the quadratic formula:
8r^2=9

Click here to see answer by jim_thompson5910(12548) About Me 
Question 201639: solve the equation with the quadratic formula:
8r^2=9
: solve the equation with the quadratic formula:
8r^2=9

Click here to see answer by Alan3354(3901) About Me 

Question 201640: solve the equation with the quadratic formula:
9m^2=-2
: solve the equation with the quadratic formula:
9m^2=-2

Click here to see answer by jim_thompson5910(12548) About Me 

Question 201632: x^2+x-42=0: x^2+x-42=0
Click here to see answer by jim_thompson5910(12548) About Me 

Question 201614: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmate’s with one or two solutions with which they must create a quadratic equation: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmate’s with one or two solutions with which they must create a quadratic equation
Click here to see answer by solver91311(4032) About Me 
Question 201614: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmate’s with one or two solutions with which they must create a quadratic equation: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmate’s with one or two solutions with which they must create a quadratic equation
Click here to see answer by jsmallt9(59) About Me 

Question 201591: x^2+8x+144=16/9: x^2+8x+144=16/9
Click here to see answer by jim_thompson5910(12548) About Me 

Question 201620: Solve equation with quadratic formula
3n^2-15=-4n
: Solve equation with quadratic formula
3n^2-15=-4n

Click here to see answer by jsmallt9(59) About Me 
Question 201620: Solve equation with quadratic formula
3n^2-15=-4n
: Solve equation with quadratic formula
3n^2-15=-4n

Click here to see answer by Earlsdon(4191) About Me 

Question 201621: sketch the graph of the function
y=2x^2+4x+5
: sketch the graph of the function
y=2x^2+4x+5

Click here to see answer by Earlsdon(4191) About Me 

Question 201572: solve equation by completing the square
n^2+16n-97=-3
: solve equation by completing the square
n^2+16n-97=-3

Click here to see answer by jim_thompson5910(12548) About Me 

Question 201512: An apartment owner wants to increase the monthly rent from the $250 in x increases of $10.
A. What is the new price after the x increase of $10?
B. If the number of apartments rented is 70-2x and the revenue is the number of apartments rented times the rent, what is the revenue?
C.If the owner wants to receive $17,980 per month, how many $10 increases can the owner make?
D. What will be the monthly rent?
: An apartment owner wants to increase the monthly rent from the $250 in x increases of $10.
A. What is the new price after the x increase of $10?
B. If the number of apartments rented is 70-2x and the revenue is the number of apartments rented times the rent, what is the revenue?
C.If the owner wants to receive $17,980 per month, how many $10 increases can the owner make?
D. What will be the monthly rent?

Click here to see answer by josmiceli(2698) About Me 

Question 201438: I am having trouble trying to solve this problem. Can you please help
x^2-2x -13
I believe that sign represents power to the secong degree.
: I am having trouble trying to solve this problem. Can you please help
x^2-2x -13
I believe that sign represents power to the secong degree.

Click here to see answer by Alan3354(3901) About Me 

Question 201334: Please help. I'm not sure I have this done correctly.
3/-5-x - x/x-3=0
: Please help. I'm not sure I have this done correctly.
3/-5-x - x/x-3=0

Click here to see answer by MathTherapy(97) About Me 
Question 201334: Please help. I'm not sure I have this done correctly.
3/-5-x - x/x-3=0
: Please help. I'm not sure I have this done correctly.
3/-5-x - x/x-3=0

Click here to see answer by RAY100(776) About Me 

Question 201343: if leah is 6 years older than Sue and JOhn is 5 years older then leah, and the total of their ages is 41. How old is Sue?
Can someone clarify this for me?Thank you
: if leah is 6 years older than Sue and JOhn is 5 years older then leah, and the total of their ages is 41. How old is Sue?
Can someone clarify this for me?Thank you

Click here to see answer by rfer(333) About Me 

Question 201344: Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?
A. $280.90
B. $287
C. $292.50
D. $306
E. $333.89
Can you show me how do this step by step please,I need to know how to this on my own..Please and thank you
: Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?
A. $280.90
B. $287
C. $292.50
D. $306
E. $333.89
Can you show me how do this step by step please,I need to know how to this on my own..Please and thank you

Click here to see answer by rfer(333) About Me 

Question 201342: Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?
A. $280.90
B. $287
C. $292.50
D. $306
E. $333.89
Can you show me how do this step by step please,I need to know how to this on my own..Please and thank you
: Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?
A. $280.90
B. $287
C. $292.50
D. $306
E. $333.89
Can you show me how do this step by step please,I need to know how to this on my own..Please and thank you

Click here to see answer by nerdybill(1993) About Me 

Question 201306: Could someone help me solve for x: 2x/x+4-1/x-3=0: Could someone help me solve for x: 2x/x+4-1/x-3=0
Click here to see answer by nerdybill(1993) About Me 

Question 201231: x intercepts of f(x)=7x+x(x-5)
The first question was to solve 7x+x(x-5)=0 and I found x=(0,-2), the next question was to find the x intercepts of f(x)=7x+x(x-5), and I am getting confused! Help! Thanks!
: x intercepts of f(x)=7x+x(x-5)
The first question was to solve 7x+x(x-5)=0 and I found x=(0,-2), the next question was to find the x intercepts of f(x)=7x+x(x-5), and I am getting confused! Help! Thanks!

Click here to see answer by jim_thompson5910(12548) About Me 

Question 201192: Hello, I need to find a quadratic function in the form Y=ax^2+bx+c that passes through the points (1,359),(3,281),(4,194) and evaluate that function at x=5? Thanks for the help!: Hello, I need to find a quadratic function in the form Y=ax^2+bx+c that passes through the points (1,359),(3,281),(4,194) and evaluate that function at x=5? Thanks for the help!
Click here to see answer by solver91311(4032) About Me