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;

There are a couple of different ways you could do this.
I'm going to do it with the least number of steps.
4d - 7 = 3d Subtract 4d from both sides.
4d - 4d - 7 = 3d - 4d
-7 = -d Divide both sides by negative one so that the variable will become positive.
-7/-1 = -d/-1
7 = d
Answer:
6/6, 5/8, 2/4, 1/3, 3/10, 2/12
Step-by-step explanation:
1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000x3422222222222222222222224444444444444444444444443333333335
umka2103 [35]
Answer:100000000000000000000000000000 quint zillion
Step-by-step explanation: