It is 30-60-90 triangle, so:

Answer B.
Answer:
first one. Since its X crosses or passes (2,0)
Step-by-step explanation:
Answer:
four hundred thirty-two
Step-by-step explanation:
Answer:
6 + (d * 2)
Step-by-step explanation:
You are adding 6 to the equation after the amount d times 2. In that case, a parentheses is required to round up d * 2.