Answer:
57
Step-by-step explanation:
Rearrange so x is the subject:-
(im assuning the f unction f(x) = (x + 2) / 7):-
f(x) = (x + 2)/7
7f(x) = x + 2
x = 7f(x) - 2
replace f(x) by x and x by another function
f = 7x - 2
Its D
Answer:
.
Step-by-step explanation:
Given : = 128.
To find : what is the logarithmic form of the equation in base 10
Solution : We have given that = 128.
By th change base rule ( inverse of exponential function )
= c is equal to = b
Then = 128 in to logarithm form = x.
Then in to the base 10 logarithmic form.
By the change of base formula .
Then , .
Therefore, .
Answer:
The first step to do is trying to find the closest perfect square less than 845, and the closest perfect square more than 845.
In this case 29^2 (841) is the closest perfect square less than 845, and 30^2 (900) is the closet perfect square more than 845.
In conclusion we will say that 29 < √ 845 < 30.
Hope it helps you.