1. 90c : $4.50 2. 80cm : 1.2m
2 answers:
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Answer:
The equation of the plane is represented by .
Step-by-step explanation:
Algebraically speaking, a plane can be represented by following vectorial product:
(1)
Where:
,
,
- Plane coeffcients.
,
,
- Coordinates.
We need three distinct points to determine all coefficients. If we know that ,
and
, the system of equations to be solved is:
(1)
(2)
(3)
The solution of this system is ,
,
.
Hence, the equation of the plane is represented by .
The roots of the equation , 2+3=m, are non real roots.
The quadratic formula's discriminant is represented by the square root symbol -4ac. If there are two solutions, one solution, or none at all, the discriminant informs us.
As of now, 2m²+3=m we need to find the kind of roots they have.
2m²+3=m
2m²-m+3=0
Here, we can derive the following values from the equation:
a = 2, b = -1, c = 3
An equation's discriminant is stated as:
D = b²-4ac
D = (-1)(-1) - 4(2)(3)
D = 1 - 24
D = -23
Discriminant can determine the kind of roots that the equation contains.
In this instance, the discriminant is below 0.
The equation's roots are complex conjugates when D < 0.
Hence the roots for the equation are non real roots.
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