We are given the following equation:
When a log is written without a base it is understood that its base is 10. So we can also write the above equation as:
In order to transform logarithmic equation to exponential equation we move the base of log to other side of the equation and place the values on the other side in its exponent. So the above equation becomes:
Thus, option b gives the correct answer
A) The eight pound bag costs less if you divide 7 by 6 you get $1.17 per pound. If you divide 9 by 8 you get $1.13.
B) 1.17 dollars per pound
(Everything above is rounded so do the math to find the more accurate numbers)
Answer:
y=2
x=7
Step-by-step explanation:
subtract equation 1 from 2
0+2y=4
y=2
substitute y into equation 1
x+2=9
x=9-2
x=7
Answer:
Step-by-step explanation:
from the graph we see that :
So our mission now is to find the expression of f(x)
let's try the four given expressions
f(4)=(4∧4)-4
= 256-4
= 252
this not the expression of f
f(4)=(x+4)∧4
= 4096
again this is not the expression
f(4)=(x∧4)+4
= 260
This is not the expression .
let's try the last one
f(4)= (4-4)∧4
= 0
that s true .
We found the expression .
Let's check by drawing the function