Answer:

Step-by-step explanation:
We want to simplify 
We expand using the distributive property to get:

This implies that:

We perform the subtraction now to get:

Answer:
y=-(2±√21)
Step-by-step explanation:
Answer:
D is the answer
Step-by-step explanation:
Mark brianliest pls
Answer:

Step-by-step explanation:
Given
The attached triangle
Required
Length AB
To do this, we make use of sine law which is represented as:

So, we have:

Make AB the subject


