Select all that are equivalent to sin H. 1. cos H

2. cos Y

3. sin Y

4. sin W

5. tan W

6. cos(90-H)

7. sin(90-H)

Match each equation with the operation you can use to solve for the variable. 1 subtract 10 2 divide by 10 3add 18 4add 10 5 subtact 18 6multiply by 5. 7multiply by 10. a 5 = 10p b p + 10 = 18 c p + 18 = 5 d 5p = 10

Which statement justifies why angle ebc measures 90?

Which one ? is the answer and how to find this answer