Answer:
d. 5
Step-by-step explanation:
I just learned how to do it just for this so please lmk if it's right or not :)
The 21 part repeats
it can be represented as 21/99
it's rational
Answer: option 2
Step-by-step explanation:
The way you'd set it up would be sin55º/12=sinB/14 (you could also flip the equation so that 12/sin55º=14/sinB, you'll get the same answer either way). Multiply out so that its 14•sin55º=12•sinB, or 11.47=12•sinB. Divide both sides by 12 so that it looks like .96=sinB, then take arcsine of both sides (arcsin= x=sin^-1 theta+360n or x=180- (sin^-1 theta)+360n), which should give you about 72.88º and 107.12º.
The answer to the question is b
