Answer:
x squared over 4 plus y squared over 8 equals 1
Step-by-step explanation:
The general equation of ellipse is given as;
(x²/a²) + (y²/b²) = 1
The coordinates of a foci are: (±c, 0) where;
c² = b² - a²
However, we know that equation of directrix is; x = ±a/e
Now, Directrix is given ±4
Thus, a/e = 4
a = 4e
We also know that c = ae from ellipse foci coordinates.
Thus, ae = 2
since ae = 2, then (4e)e = 2
4e² = 2
e² = 2/4
e = 1/2
Thus;
a = 4 × 1/2
a = 2
Since c² = b² - a²;
2² = b² - 2²
4 = b² - 4
b² = 8
From (x²/a²) + (y²/b²) = 1, we can put our values to get;
x²/4 + y²/8 = 1
Answer:
a. √442, b. √540, c. 8
Step-by-step explanation:
remember that a^2 + b^2 = c^2
One solution because it only has one answer that can come out if those properties. If you add the -3 to -6 it will make it 6=12 -3x. Subtract the 12 it will be -6=-3x divide by -3 and x=2
Answer:
72
Step-by-step explanation:
You use Pythagorean Theorem to to find the missing side which in this case is 6 and since and then from there you just add
Answer:
* 1998 and 2001 had the most precipitation.
* The best years for survival were 1998 and 2001.
* One reason would be that precipitation rates are connected to plants as well. Fawns are herbivores, meaning they eat plants, so if the plants are well nourished by rain and growing, fawns will have plenty to eat. Sorry that I don’t know the second reason the two factors are connected.
* Fawns would most likely go extinct if the precipitation rate continues to go down.
Step-by-step explanation:
