Select the choice that translates the following verbal phrase correctly to algebra:

one half of a number decreased by 16

n minus 16 over 2
one halfn − 16
one half(n − 16)
n − one half(16)

The answer is one halfn − 16

Let the number be n.

One half of a number is (1/2n)
decreased by 16 is (-16)

one half of a number decreased by 16 is
1/2n - 16

Or one halfn − 16

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