7^2 + 9^2 = 130
Square root of 130 is about 11.4
Answer:
C) 1.5 in
Step-by-step explanation:
(7 + 1.5 + 1.5)(5 + 1.5 + 1.5) = 80
Write both sides as powers of 8, then simplify:
![8^{\log_86x}=8^{\log_82+\log_8(x-4)}=8^{\log_82}8^{\log_8(x-4)}](https://tex.z-dn.net/?f=8%5E%7B%5Clog_86x%7D%3D8%5E%7B%5Clog_82%2B%5Clog_8%28x-4%29%7D%3D8%5E%7B%5Clog_82%7D8%5E%7B%5Clog_8%28x-4%29%7D)
![\implies6x=2(x-4)](https://tex.z-dn.net/?f=%5Cimplies6x%3D2%28x-4%29)
![\implies6x=2x-8](https://tex.z-dn.net/?f=%5Cimplies6x%3D2x-8)
![\implies4x=-8](https://tex.z-dn.net/?f=%5Cimplies4x%3D-8)
![\implies x=-2](https://tex.z-dn.net/?f=%5Cimplies%20x%3D-2)
However, on the left hand side, this would mean we'd have,
, which is undefined (assuming the real-valued logarithm), so this equation has no real solution.
Step-by-step explanation:
Principal(P) =$2200
Rate(R) =4%
Time(T)=2 yrs
Simple Interest=PTR/100
I=2200*4*2/100
=$176