I think it is B as 168/20
Answer:
B
Explanation:
B. Women have straighter teeth.
= (3,760 joule/sec) / (4,000 joule/sec)
= 3,760 / 4,000 = 0.94 = 94%
Stars<span> are </span>classified<span> by their spectra (the elements that they absorb) and their temperature. There are seven main types of </span>stars. In order of decreasing temperature, O, B, A, F, G, K, and M. Type O stars are the stars with the highest temperature and biggest luminosity. So, if there is a <span>new born star cluster : 1. with one O star,
2. with 10 A stars,
3. with 10 G stars,
4. with 1000 M stars
</span><span>the stellar type O will dominate the light output from the cluster.</span>
Answer:
18feet
Explanation:
We need to find the distance,c between the vertex and the focus.
For a vertical parabola:

#If we place our parabola at the center, the expression changes to:

The points of the parabola are given as (12,2), substitute in our equation to find c:

Hence, the receiver should be placed at 18ft