The true statement about the directrix is that each directrix of this ellipse is 31.25 units from the center on the major axis.
<h3>How to determine the distance of the directrix?</h3>
The equation of the ellipse is given as:
The above means that:
a^2 = 625
a = 25
b^2 = 225
b = 15
Calculate c using:
c^2 = a^2 - b^2
This gives
c^2 = 625 - 225
Evaluate the difference
c^2 = 400
Evaluate the square root
c = 20
The equation of the directrix is
x - x₀ = ± a²/c
So, we have:
x - x₀ = ± 625/20
Evaluate the quotient
x - x₀ = ± 31.25
This means that, each directrix is 31.25 units from the center on the major axis.
Read more about directrix at:
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Answer:
Food
Explanation:
I mean what else would it be?
Answer:
The significance of the temperature -40°C is that when it is converted to Fahrenheit, it is the same thing, -40°F. Usually, the Fahrenheit's numbers are larger than Celsius
Countries that were part of the eastern bloc are :
- Bulgaria
- Czechoslovakia
- Poland
- Romania
The eastern bloc also known as the second world by the western bloc includes states that were socialist states which was in opposition to the western bloc which were capitalist states. the second world was also referred to as USSR.
The USSR comprised mainly of countries from eastern and central europe with the ideas of communism. the USSR was split into several countries in 1991 after the cold war.
Hence we can conclude that Countries that were part of the eastern bloc are :
- Bulgaria
- Czechoslovakia
- Poland
- Romania
Learn more about Eastern bloc : brainly.com/question/452315
