Question

Dot Products of Vectors

Quiz

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Find a b if a = 10i + 4j and b = 3i + 4%.

a. (30,16)

c. 46

b. -14

d. (13,8)

Answer 1

C. 46

Explanation:

Answer 2

choice c. 46

Explanation:

Find a b if a = 10i + 4j and b = 3i + 4%

a = <10, 4>

b = <3, 4>

a*b = <10, 4> * <3, 4> = 10*3 + 4*4 = 30 + 16 = 46