Answer:
x = or 0.706
or 1.735
Step-by-step explanation:
5x + 2y=7 ----->(eq 1)
- 2x + 6y=9 ----->(eq 2)
Multiply (eq 1) with 3
3×(5x + 2y) = 3×7
15x + 6y = 21 ----->(eq 3)
substract (eq 3) from (eq 2)
- 2x + 6y - (15x + 6y) = 9-21
- 2x + 6y - 15x - 6y = 9-21
- 2x - 15x + 6y - 6y = 9-21
-17x = -12
x = -12 ÷ -17
x =
put x = in (eq 1)
Answer:
Step-by-step explanation:
Let us write the equations in standard form:
We have
and
Since the eccentricity of this conic is less than 1, the conic represents an ellipse.
The second equation is .
This is a hyperbola, because eccentricity is more than 1.
The third equation is .
This is a parabola, because eccentricity is 1.
The fourth equation is .
This is also a hyperbola, because eccentricity is more than 1.