Answer:
C
Step-by-step explanation:
Given the 2 equations
y = 
x + 2 → (1)
- x + 3y = 6 → (2)
Substitute y = x + 2 into (2)
- x + 3( x + 2) = 6 ← distribute left side
- x + x + 6 = 6, that is
6 = 6 ← True
This statement indicates the system has infinitely many solutions
Step-by-step explanation:
x and y are roughly in a linear relationship.
when x increases by 2 units, then also y increases by more or less 2 units.
when x increases by 3 units, then also y increases by more or less 3 units.
it is not precise, but a good approximation model.
Angle A is 165°, Angle B is 15°
Answer:
The solution of the system of equation is x = 3.5
Step-by-step explanation:
The given system of equation is;
f(x) = 3·x + 5 and g(x) = x + 12
To find the common solution, we equate the values of both functions as follows;
3·x + 5 = x + 12
We collect like terms;
3·x - x = 12 - 5
2·x = 7
x = 7/2 = 3.5
x = 3.5
Therefore, the solution of the system of equation is x = 3.5
Answer:
f^-1 (x)=1/7x
Step-by-step explanation:
f(x) = 7x
y=7x x=7y
y=x/7
y=1/7x
f^-1 (x)=1/7x
