ALGEBRA 2

Could you please show me step by step how to solve this problem?

Suppose that the equation of an ellipse is 36X^2 + 81y^2 = 2916

Find the major and minor radii. Use these numbers and the realtionship in problem 11 to calculate c, the focal readius for this elipse.

number 11 stated exlapin why b^2 + c^2 = a^2. Write this relationship on your index card.

THANK YOU!

  1. 👍
  2. 👎
  3. 👁
  1. The canonical form for an ellipse is
    (x/a)2 + (y/b)2 = 1

    where a and b are the major and minor radii respectively (note: major>minor).

    If you rewrite
    36X2 + 81y2 = 2916
    as
    (6x)2 + (9y)2 = 542
    you should have no problem finding a and b.

    See also:
    http://en.wikipedia.org/wiki/Ellipse

    1. 👍
    2. 👎
  2. l was not even born yet in jun 9 2009 3 month later l was born

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. algabra

    Note: Remember to show all of the steps that you use to solve the problem. You have $59.95 in your wallet and want to buy some new CDs. If the CDs are $11.99 each, what number of CDs, x, can you buy? Write and solve an inequality.

  2. Calculus

    What is the smallest possible slope for a tangent to y=x^3 - 3x^2 + 5x? (I'm unsure how to approach this problem, if you know how to solve it, please explain step by step. THANK YOU!!!)

  3. Math

    Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Solve the equation. Explain each step and identify the property used to reach each step. 0.6x + 0.8 = 1.4

  4. Math

    If y varies directly as x and y=3 when x=10, find x when y=8? Can you please show me step by step solution for this problem?

  1. math

    Consider the sequence of steps to solve the equation: 2(x − 4) + 6x = 9x − 10 Which step in solving this equation is justified by the Commutative Property of Addition? Given ⇒ 2(x − 4) + 6x = 9x − 10 Step 1 ⇒ 2x − 8

  2. math

    Consider the sequence of steps to solve the equation: 5(x - 3) = 7x 2 Step 1 ⇒ 10(x - 3) = 7x Step 2 ⇒ 10x - 30 = 7x Step 3 ⇒ 3x - 30 = 0 Step 4 ⇒ 3x = 30 Step 5 ⇒ x = 10 Identify the property of equality which yields

  3. math

    An equation and the steps to solve it are shown below: 3x − one over two (8x − 2) = 4 Step 1: 3x − 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 − 1 = 4 − 1 Step 4: x = 3 Which step was the error made and why? Step 1,

  4. Math

    Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Use inverse operations to solve each equation. Explain each step and identify the property used to reach step. 19= h/3 -8

  1. Algebra

    How do I solve the problem with the system of inequalities by graphing? 2x − y > 0 3x + 2y ≤ −14 Some step by step would be very much helpful for me. Thanks! -Bobbie

  2. PreCalc

    Approximate the solutions to the following equation on the interval [0,2π). Round your answer to four decimal places. sinθ=0.65 Apparently, there suppose to be two answers to this question with a comma separating​ both

  3. chemistry

    What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6? Answer to two (2) decimal places. I know what steps to use but have difficulty applying them to the quesiton Can someone please complete the question

  4. Algebra

    V = 1/3 Bh (solve for B) ________________________ Can someone please help me with this problem. And show me step by step. I'm really confused.

You can view more similar questions or ask a new question.