The graphs are curved, not segments ending in a point.
http://www.wolframalpha.com/input/?i=plot+y+%3D+sin+x+for+-3.2+%3C+x+%3C+3.2+and+-1.1+%3C+y+%3C+1.2
Answer:
she can knit 1mm/17.5min or she can knit 1mm in 17 minutes and 30 seconds.
Answer:
Step-by-step explanation:
The sum could be greater than 1 but not equal to 1.
