Which of the following parabolas opens down? A. Directrix: y = -5; focus: (2, 6)
B. Directrix: y = 5; focus: (2,-6)
C. Directrix: y = 5; focus: (2,6)
D. Directrix: y = -5; focus: (-2, 6)

below

step-by-step explanation:

1. 5/1

2. 10/16

3. 90/2

4. 1/20

5. 3/1

6. 14/24

7. 1/4

8. 18/10

to be honest i don't know but i need points so

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q