ANSWER
The dot product is 10.
EXPLANATION
The given vectors are (2,4) and (1,2).
If we have the vectors
u=(a,b) and v=(c,d)
Then the dot product of the two vectors is given by

This implies that,

This simplifies to;

Answer:
or , -3a=14-8
or, -3a=6
or , a= 6/3
therefore, value of a= 2
Step-by-step explanation:
Well, negative slope has the word negative in it right? So, it will be the negative number. Answer: -5 (negative 5)
24 square feet + 12 square feet = total square feet?
I'm not sure. I think I can solve it if this question is more simplified. Contact me if you need help!