Select all expressions that must be equivalent to cos A. A sin xº
B sin y
C Cos yº
Dcos (90 – y)
Ecos (90 – 2)°
Fsin (90 – y)

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24