Equation
(3x21)+(3x15)
Answer
$108
It is 4:2
Since it is similar AB is double the size of AB' and BC is double the size of BC'. so 4:2 4 is double the size of 2.
Yes I do believe that is correct!
The number of cards left is 600-280=320.
So the 320 cards left are what percent? we count it like this:
![\frac{320}{600}*100%= \frac{32}{60}*100%=\frac{32}{60}*100%](https://tex.z-dn.net/?f=%5Cfrac%7B320%7D%7B600%7D%2A100%25%3D%20%5Cfrac%7B32%7D%7B60%7D%2A100%25%3D%5Cfrac%7B32%7D%7B60%7D%2A100%25)
=53.3..%
so the answer is 53.3%
Answer:
False
Step-by-step explanation:
the <u>dot product</u> between two vectors A and B is:
A·B=AB![cos\theta](https://tex.z-dn.net/?f=cos%5Ctheta)
where
is the angle between the vectors, if they are parallel, this angle is zero. so
and so the dot product is:
A·B =AB![cos(0)](https://tex.z-dn.net/?f=cos%280%29)
and since ![cos (0)=1](https://tex.z-dn.net/?f=cos%20%280%29%3D1)
the dot product is equal to
A·B=AB
The dot product of parallel vectors is NOT zero