An opinion poll asked a random sample of adults whether they favor the US Food and Drug Administration banning food color additives in the United States. A commentator believes more than 40% of all adults favor such a ban. Which null and alternative hypotheses should be used to test this claim?

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

If gravity is one third on mars then weight also one third on mars