Answer:
65.56°
Step-by-step explanation:
We know that if we take dot product of two vectors then it is equal to the product of magnitudes of the vectors and cosine of the angle between them
That is let p and q be any two vectors and A be the angle between them
So, p·q=|p|*|q|*cosA
⇒
Given u=-8i-3j and v=-8i+8j


let A be angle before u and v
therefore, 
⇒
Therefore angle between u and v is 65.56°
I’m not great at math so I could easily be wrong, but
I divided the 18.24 millimeters by 12 pennies and got 1.52
So if the pennies are all the same size, each penny should 1.52 millimeters.
To show work:
18.24/12=1.52
Answer:
Rotation 180° counterclockwise about the origin
Answer:
D=The graph touches at the x-axis at x=-4 and crosses the x-axis at x=1
Step-by-step explanation: