Learning goal: to understand the rules for computing dot products. let vectors a=(2,1,−4), b=(−3,0,1), and c=(−1,−1,2). part a - dot product of the vectors a and b calculate a⋅b. express your answer numerically. view available hint(s)

For this case we have the following vectors:
 
 The dot product of two vectors is a scalar.
 The point product consists of multiplying component by component and then adding the result of the multiplication of each component.
 For the product point of the vectors a and b we have:
 
 
 The product point of the vectors a and b is: 
 

The submarine needs to move up, so the rate the submarine needs to move is positive.