Answer:
is standard equation of hyperbola with vertices at (0, ±9) and foci at (0, ±11).
Step-by-step explanation:
We have given the vertices at (0, ±9) and foci at (0, ±11).
Let (0,±a) = (0,±9) and (0,±c) = (0,±11)
The standard equation of parabola is:
From statement, a = 9
c² = a²+b²
(11)² = (9)²+b²
121-81 = b²
40 = b²
Putting the value of a² and b² in standard equation of parabola, we have
which is the answer.
Answer:
A
Step-by-step explanation:
It's a solid dot that's going left, so it's less than or equal to. What integer is it on? -2. So it is either less than or equal to -2.
Answer:
d-12=41
Step-by-step explanation:
If his age subtracted by 12 equals 41,you would set the equation up by subtracting 12 from d,which is Diego's age,equal to 41.
Answer:
0.6 feet in half a day
Step-by-step explanation:
If it grows 1.2 feet in 1 full day, then half of that 1.2÷2=0.6
