I'm thinking the first one would be a function
11/30 is .36666... because that is what you get when you divide 11 by 30. Hope this helps!
Answer:
the answer is B x=2 y=6
Step-by-step explanation:
we can find by elimination or substitution method
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:
105/24
Step-by-step explanation:
The volume of a rectangular prism is length*width*height.
3/2 * 5/4 * 7/3 would be 15/8*7/3 which is 105/24, which is the fourth option.