Recall the logarithm rules :
a^y = x is the same as log_a x = y
In this case,
a = 18
y = r - 10
x = 93
So,
18^ (r-10) = 93
is the same as
log_18 93 = r - 10
Solve for r to get :
10 + log_18 93 = r
Your answer is 45.. I am 100% positive
Answer:
4000Pa
Step-by-step explanation:
Pressure is force(thrust) per unit area.
Pressure=Force/Area
P=F/A
A.T.Q
Applied force=800N
Area=0.2m²
Pressure=800/0.2=4000Pa