The two "types of probability" are: 1) interpretation by ratios, classical interpretation; interpretation by success, frequentist interpretation. The third one is called subjective interpretation.

5 0

3 years ago

Derive the equation of the parabola with a focus at (−2, 4) and a directrix of y = 6. Put the equation in standard form.

erastovalidia [21]

Answer:

Step-by-step explanation:

From any point (x, y) on the parabola the focus and directrix are equidistant.

Using the distance formula

$\sqrt{(x+2)^2+(y-4)^2}$ = | y - 6 |

Squaring both sides

(x + 2)² + (y - 4)² = (y - 6)² ← distributing

x² + 4x + 4 + y² - 8y + 16 = y² - 12y + 36 ( subtract y² - 12y + 36 from both sides )

x² + 4x + 4 + 4y - 20 = 0 ( subtract x² + 4x + 4 from both sides )

4y - 20 = - x² - 4x - 4 ( add 20 to both sides )

4y = - x² - 4x + 16 ( divide through by 4 )

y = - $\frac{1}{4}$ x² - x + 4, that is

f(x) = - $\frac{1}{4}$ x² - x + 4 → B

3 0

3 years ago

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At grocery store, the price of a watermelon is determined by how many pounds the watermelon weighs. The price of the watermelon

babymother [125]

Answer:

7.3 divided by 4.38

Step-by-step explanation:

4 0

4 years ago