Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)
Question 269877: If a right circular cone intersects a plane that passes through one of its nappes, but the plane is neither parallel to the edge of the cone nor perpendicular to the cone's axis, the resulting curve will be a(n)
Click here to see answer by drk(1908)  |
Question 271750: The B Bridge connects SI and NY to NJ. It has an arch in the sharpe of a parabola that opens downward. Write an equation of a parabola to model the arch, assuming that the origin is at the surface of the water, beneath the vertex of the arch. end to end bridge if 1675 ft; base to top is 325 ft.
This is in chapter 8, pg 424 problem 43 of Glencoe Mathematics, algebra 2
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 273332: My Textbook gives a sample hyperbola equation
(x^2 / 9) - (y^2 / 16) = 1
It then has
y = ±(4/3)√x^2 - 9
I would like someone to explain to me step by step how my textbook got to this answer or is it that i am missing out on some detail.
Click here to see answer by stanbon(75887) |
Question 273593: Molly's Custom Kitchen Supplies sells handmade forks and spoons. It cost the store $1.70 to buy the supplies to make a fork and $1.30 to buy the supplies to make a spoon. The store sells forks for $5.60 and spoons for $5.40. Last April Molly's Custom Kitchen Supplies spent $37.90 on materials for forks and spoons. They sold the finished products for a total of $147.20. How many forks and how many spoons did they make last April?
Click here to see answer by Theo(13342)  |
Question 273593: Molly's Custom Kitchen Supplies sells handmade forks and spoons. It cost the store $1.70 to buy the supplies to make a fork and $1.30 to buy the supplies to make a spoon. The store sells forks for $5.60 and spoons for $5.40. Last April Molly's Custom Kitchen Supplies spent $37.90 on materials for forks and spoons. They sold the finished products for a total of $147.20. How many forks and how many spoons did they make last April?
Click here to see answer by mananth(16946)  |
Question 274145: Some nuclear power plants utilize "natural draft" cooling towers in the shape of a hyperboloid, a solid obtained by rotating a hyperbola about its conjugate axis. Suppose such a cooling tower has a base diameter of 400 feet, and the diameter at its narrowest point, 360 feet above the round, is 200 feet. If the diameter at the top of the tower is 300 feet, how tall is the tower?
Click here to see answer by CharlesG2(834) |
Question 275418: Hello :)
Can you please help me with this homework, it says,
1) create a design that you want to make using only parabolas and circles. Each design must include at least one parabola and one circle.
2) must have at least 4 conics in the design and write the equation for each conic.
I was thinking of a smile shape, but I wasn't sure its the write design for the teacher rules and how to get the equation for a smile.
I appreciate your help in advance!
Thank you,
Tena
Click here to see answer by stanbon(75887) |
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