Hey number 8. Be super careful, less than always look at that it should be 5n-3
Answer:
3x^10 + x^6 + 2x^2 - 4x + 8
Step-by-step explanation:
In descending order by powers of x: 3x^10 + x^6 + 2x^2 - 4x + 8
Answer:
-8 km
Step-by-step explanation:
Answer:
Choice D is correct
Step-by-step explanation:
The eccentricity of the conic section is 1, implying we are looking at a parabola. Parabolas are the only conic sections with an eccentricity of 1.
Next, the directrix of this parabola is located at x = 4. This implies that the parabola opens towards the left and thus the denominator of its polar equation contains a positive cosine function.
Finally, the value of k in the numerator is simply the product of the eccentricity and the absolute value of the directrix;
k = 1*4 = 4
This polar equation is given by alternative D
