Answer:
5/18
Step-by-step explanation:
1/3 on monday
5/6 more
1/3 times 5/6
Given :
The foci of hyperbola are (8,0) and (-8,0) .
The difference of the focal radii = 6.
To Find :
The equation of the hyperbola.
Solution :
We know, distance between foci is given by :
2c = 8 - (-8)
c = 8
Also, difference between the foci or focal distance is given by :
2a = 6
a = 3
Now, we know for hyperbola :

General equation of hyperbola is :

Hence, this is the required solution.
Answer:
20.7 --> 21
9.18 --> 9
21x9 is 189, thus the estimated product is 189.
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