Answer:

Step-by-step explanation:
Given f(x)=
We have to find 
In order to find
we have to make x as the subject of the formula
Let us assume f(x)=y
⇒
Subtracting both sides by 5


Dividing both sides by 2

⇒
Now substituting y with x
we have 
Now 
=
So option (ii) is correct
Answer:
<em>She needs </em><em>77 </em><em>on her last test to earn an 82 for the quarter.</em>
Step-by-step explanation:
Maria scored 72, 97, and 82 on her first three math tests.
She wants to have a mean score of 82 for the quarter.
Let us assume that she must score x on her last test to earn an 82 for the quarter.
So the average score will be,

But the average score is given as 82, so





Answer:
Total Sold potatoes =213
Paid price=213*0.47=100.11
Sold price=213*0.88=187.44
Lost potatoes=2.82
=187.44-100.11-2.82
Profit =84.51
Answer:
The last one
Step-by-step explanation:
In a right triangle the expression of the sin is the quotiont of the opposite side and the hypotenuse
- sin x° =

Answer:
x=18-y Answer will be (0,9) (8,5)
Step-by-step explanation: