Answer:
x=ln(81) over 2ln(3)
Step-by-step explanation:
Using ln as its base thing instead of log and the formula usually is log over log. Plus you have to bring down the power that way.
x=2
3^2x = 81
3^2x = 3^4
Compare powers
2x = 4
x = 2
Since it does not plug in to the second linear equation, the ordered pair is not a solution of the linear system.
(-1,3); y = -7x -4 y = 8x + 5 3 =7 - 4 3 =/ - 8 + 5
l=27
b=2×35=70
2l=124-70=54
l=54/2=27
A = 4πr2
do you understand this?
