Answer: 
Step-by-step explanation:
this forms a 30 degree reference angle
and this is in the 4th quadrant
When the angle is 30 degrees, the coordinates are:

7.5 × 10-4
That's the scientific notation answer ^
Answer:
Expression
Step-by-step explanation:
Expressions use numbers, variables, and operations to form a mathematical calculation.
Equations are similar except they use equal signs, so that makes them different than expressions.
If this answer is correct, please make me Brainliest!
Answer:
3.14
Step-by-step explanation:
Answer:-2
Step-by-step explanation: