Answer:
getting points sry
Step-by-step explanation:
Exact form: -square root 2/2 (I don't have a square root symbol)
Decimal form: -0.70710678
Answer:

Step-by-step explanation:
For example, we'll use this quadratic equation.

To understand how to plug it into the formula we need to know what each term represents.

So the equation above would be put into the formula like this.

Then we would solve

Now, the equation will branch off into one that solves when addition and one when subtraction.

So x={-3, -2} (-3 and -2)
Answer:
63 degrees
Step-by-step explanation:
It is an opposite angle so it the same angle