Answer:
The inverse is (x+3)/7
Step-by-step explanation:
y = 7x-3
Exchange x and y
x = 7y-3
Solve for y
Add 3 to each side
x+3 =7y-3+3
x+3 = 7y
Divide each side by 7
(x+3)/7 = 7y/7
(x+3)/7 = y
The inverse is (x+3)/7
True. Bc 100km / 4 hours is 25 km/h
325*89.1
Let's decompose this into:
325 = 300 + 25
89.1 = 80 + 9 + 0.1
Then we have the multiplication:
(300 + 25)*(80 + 9 + 0.1)
Let's distribute the multiplication:
300*80 + 300*9 + 300*0.1 + 25*80 + 25*9 + 25*0.1
So now we have 6 multiplications that are a lot easier to solve than the initial one that we had.
Then the list of six multiplications involved in solving this problem are:
300*80 = 24,400
300*9 = 2,700
300*0.1 = 30
25*80 = 2,000
25*9 = 225
25*0.1 = 2.5
Now we add all of those and get:
325*89.1 = 24,400 + 2,700 + 30 + 2,000 + 225 + 2.5 = 28,957.5
The value of x in the given equation is
From the question,
We are to solve the given equation
The given equation is
This becomes
From one of the laws of logarithms, we have that
and
∴ becomes
and
Now, subtract 6 from both sides
∴
Hence, the value of x in the given equation is
Learn more on solving equations here: brainly.com/question/11802986
Answer:
-4, -2.8, 0.5, 1.3, 3
Step-by-step explanation: