Answer:
C
Step-by-step explanation:
This could be either 90° counterclockwise or 270° clockwise but the latter is not an option so the answer is C.
Answer:
An obtuse triangle has 1 obtuse angle and 2 acute angles.
When there is a - in front of an expression in parentheses, change the sign of each term in the expression to +
Calculate the LCM of denominators
Calculate the difference
Answer:
(1,-1)
Step-by-step explanation: