# Physics/Math

posted by
**Technoboi11**
.

Two vectors are given by

a = 3.3i + 6.5j, and

b = 2.5i + 4.9j.

Find

a) a·b =

b) (a + b)·b =

c) the component of a in the direction of b =

a) (3.3x2.5) + (6.6x4.9) =

b) (5.8x2.5) + (11.4x4.9)=

c) (a·b)/(magnitude of b)=

Great! I got it :)