The first one because the left bound is included [ and the right one is not )
Answer:
AC = 30
Step-by-step explanation:
Start with:
Combine like terms.
Subtract 
from both sides of the equation.
Subtract 
from both sides of the equation.
Then, substitute for 
in 
Multiply.
Finally, add.
Answer:
i think n = 4
Step-by-step explanation:
3(n+7) = 33
3n+21 = 33
3n = 12
n = 4
Answer:
dot
Step-by-step explanation:
When used as a diacritic mark, the term dot is usually reserved for the interpunct, or to the glyphs 'combining dot above' and 'combining dot below' which may be combined with some letters of the extended Latin alphabets in use in Central European languages and Vietnamese
The angles 1 and 2 are right angles.
As stated in the question line l is perpendicular to line m and perpendicular lines create right angles
Hope this helps :)
