Answer:
eccentricity; e = 1/7
k = 12
Conic section; Ellipse
Step-by-step explanation:
The first step would be to write the polar equation of the conic section in standard form by multiplying the numerator and denominator by 1/7;

The polar equation of the conic section is now in standard form;
The eccentricity is given by the coefficient of cos theta in which case this would be the value 1/7. Therefore, the eccentricity of this conic section is 1/7.
The eccentricity is clearly between 0 and 1, implying that the conic section is an Ellipse.
The value in the numerator gives the value of k; k = 12
Answer with Step-by-step explanation:

In this sequence,
1st term = 4
2nd term = 7
3rd term = 12
4th term = 19
10th term = 103

in this sequence,
1st term = 2
2nd term =8
3rd term = 18
4th term =32
10th term = 200
I did this today so the properties of non metal are : No luster (dull appearance)
Poor conductor of heat and electricity.
Brittle (breaks easily)
Not ductile.
Not malleable.
Low density.
Low melting point.