Answer:
30
Step-by-step explanation:
45-15
Answer:
your right
Step-by-step explanation:
<span>For given hyperbola:
center: (0,0)
a=7 (distance from center to vertices)
a^2=49
c=9 (distance from center to vertices)
c^2=81
c^2=a^2+b^2
b^2=c^2-a^2=81-49=32
Equation of given hyperbola:
..
2: vertices (0,+/-3) foci (0,+/-6)
hyperbola has a vertical transverse axis
Its standard form of equation: , (h,k)=(x,y) coordinates of center
For given hyperbola:
center: (0,0)
a=3 (distance from center to vertices)
a^2=9
c=6 (distance from center to vertices)
c^2=36 a^2+b^2
b^2=c^2-a^2=36-9=25
Equation of given hyperbola:
</span>
Total money in Tony's bank account is represented by the equation,
y = 23.50x + 54.60, where x is number of weeks that he has been adding money in the account
If after x weeks, his account balance is $219.10, we can find x using above relationship as:
219.10 = 23.50x + 54.60
=> 23.50x = 219.10 - 54.60
=> 23.50x = 164.50
=> x = 164.50/23.50
=> x = 7
So, after 7 weeks, Tony's account will have $219.10