The answer is about
8.14 years :)
Because, ↓
Unit Rate =

which is equal to →
and that's how I found out that my answer is 8.14 years
Answer:
Only option A is correct.
Step-by-step explanation:
From the given figure it is noticed that the vertices of hyperbola are (0,8) and (0,-8). It is a vertical hyperbola.
It means a=8.
From the rectangle we can say that the value of b is 6.




The focus of a vertical hyperbola are (0,c) and (0,-c). So, the focus of hyperbola are (0,10) and (0,-10).
Therefore option A is correct.
Asymptotes of a vertical hyperbola are



Directrix of a vertical hyperbola are



Only option A is correct.
Answer:
(-10) and 7
Step-by-step explanation:
-3 = (-10) +(7)= -3 (because + and - give you a - )
-70 = (-10) x (7)= -70
hope it answers your question correctly.
Answer:
Step-by-step explanation:
because <u>c</u> is shorter than<u> a</u> we know C is a smaller angle than A
so the first choice is out.
use the law of cosines to find b
= 
=1681+400-1326.787871
= 754.21219
b= 
b= 27.46292
so the last choice looks good