Question

PRE CAL HELP!
Find a ⋅ b.

a = <2, 4>, b = <2, 5>

Answer 1

<4, 9>

24

<4, 20>

16

Answer 2

@Chlorophyll @A.Avinash_Goutham @phi @TuringTest

Answer 3

for two vectors (a,b) and (c,d) the dot product is: a*c + b*d
multiply corresponding elements, and add up the products

Answer 4

@sammy90210 Is it clear enough for you to proceed here?

Answer 5

24! :D

Answer 6

2* 2 + 4 * 5
Yes!