Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 1035181: The perimeter of a rectangular flower garden is 60 m and its area is 225 m^2. Find the length of the garden. Use L = length and W = width.
A. Write a quadratic equation in terms of L in the form 0 = aL^2 + bL + c that represent the area of the flower bed.
B. Solve the quadratic equation you wrote in part a and say which method you used.
Please answer showing all steps i am behind and getting ready to do a test on this and i didn't study for this paticular promblem please help!
Click here to see answer by stanbon(75887)  |
Question 1035400: An Office Supply company sells x permanent markers per year @ $ p per marker.
The price demand equation for these markers is: P = 10-0.0001x
The total annual cost of manufacturing X permanent markers for the office supply company is: C(x) = 5000 + 2x
What is the company's maximum profit?
What should the company charge for each permanent marker?
How many markers should the company produce?
Click here to see answer by robertb(5830)  |
Question 1035729: Could you tell me if I'm on the right track with this question? Thank you.
A picture frame measures 40cm by 30cm and 704cm^2 of picture shows. Find the width of the frame.
(30-2x)(40-2x)=704
4x^2-140x+1200=704
4x^2-140x+496=0
(x-4)(x-31)
x=4 or x=31
Click here to see answer by Theo(13342)  |
Question 1035738: Please help. I keep getting: x=4 or x=31. Where am I going wrong?
A picture frame measures 40cm by 30cm and 704cm^2 of picture shows. Find the width of the frame.
(30-2x)(40-2x)=704
4x^2-140x+496=0
4(4x^2-140x+496)=0
(x^2-4x)-(31x+124)=0
(x-4)(x-31)
x=4 or x=31
Click here to see answer by Theo(13342) |
Question 1035988: An airplane flying against the wind travels 430 miles in the same amount of time it would take the same plane to travel 470 miles with the wind. If the wind speed is a constant 20 miles per hour, how fast would the plane travel in still air?
In still air, the plane would travel
miles per hour.
Just need to know how to compute this problem
Click here to see answer by josmiceli(19441)  |
Question 1035978: the large leg of a right triangle is 7 cm longer than its smaller leg. the hypotenuse is 8cm longer than the smaller leg. how many centimeters lon is the smaller leg. how many centimeters long is the smaller leg
Click here to see answer by ikleyn(52750)  |
Question 1035950: The maximum height of the arch is 21feet and the width of the roadway, including shoulder lanes, is 42 feet. At the edge of the left shoulder lane, the height of the arch is 15.4 feet. Determine the width of the arch to the nearest tenth of a foot.
Click here to see answer by josmiceli(19441) |
Question 1036277: A diver jumps off a 45 foot cliff modeled by the equation h = 16t^2 + 25. Before she can hit the water a bird hiding on a lower ledge begins to fly. If the birds movement is modeled by the equation h = -3t + 12, will the diver hit the bird on her way down.
a. graph the system and label the points of intersection.
b. describe the points of intersection in context of the problem.
Click here to see answer by Alan3354(69443)  |
Question 1036276: A rocket is launched from the ground and follows a parabolic path represented by the equation y = -x^2 + 10x. At the same time, a flare is launched from a height of 10 feet and follows a straight path represented by the equation y = -x + 10.
a. Graph the system and label the points of intersection.
b. Describe the points of intersection in context of the problem.
Click here to see answer by stanbon(75887) |
Question 1036506: The height (h) in feet of a person jumping off a diving platform can be modeled by the equation h=-16t^2+4t+6 where t represents the time in seconds the person is in the air. After how many seconds does the person jumping off the platform enter the water?
Click here to see answer by josmiceli(19441) |
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