Answer:

Step-by-step explanation:
Given

Required
Determine the inverse function
Start by replacing f(x) with y

Swap the positions of y and x

Make y the subject: <em>Add 4 to both sides</em>


Make y the subject: <em>Divide through by 2</em>
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Replace y with f-1(x)

Answer: Yes, the point (3,4) is a solution to the system.
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Proof of this:
Replace x with 3 and y with 4 in the first equation
x+y = 7
3+4 = 7
7 = 7
This confirms the first equation. Repeat for the second equation
x-2y = -5
3-2(4) = -5
3 - 8 = -5
-5 = -5
We get true equations for both when we plug in (x,y) = (3,4). This confirms it is a valid solution to the system of equations. It turns out it's the only solution to this system of equations. Visually, the two lines cross at the single location (3,4).
It would be 57 suvs and 38 sedans sold to be a rational of 3:2
Firstly, multiply both sides by 2: 
Next, divide both sides by h: 
Next, subtract both sides by b1, and <u>your answer will be
</u>
<u>Answer:
</u>
The solution of
for M = 10, N = -5P and P = -2 is 25
<u>Solution:
</u>
From question, given that the value of M is 10 and N is -5p and P is -2
We have to evaluate the value of
,
By substituting the values of M and N, we get

Expanding
:
Here 10 is the base value and 2 is the exponent value. So the base term 10 is multiplied by itself two times.

Similarly expanding
:
Here -2 is the base term and 2 is the exponent value. So the base term -2 is multiplied by itself two times.

So the equation
becomes,

By dividing 100 by 4 , we get the result as 25
Hence the solution of
when M = 10 and P = -2 is 25