Hi your answer would be 6 1/2 vials of pixie dust!
A. I’m not sure what this is asking but I’d guess 8,9,10
B is 19,20,21
C is there is none
Answer:
<h2>90°</h2>
Step-by-step explanation:
First you must calculate the module or the magnitude of both vectors
The module of u is:

The module of v is:

Now we calculate the scalar product between both vectors

Finally we know that the scalar product of two vectors is equal to:

Where
is the angle between the vectors u and v. Now we solve the equation for 

the answer is 90°
Whenever the scalar product of two vectors is equals to zero it means that the angle between them is 90 °
The slope is m = 2
“M” means slope
When you see a number in front of “x” that’s the slope in that case.