Mathematics: (i will give brainliest/5 stars to correct answer) find a ⋅ b. a = 7i - 4j, b = 4i + 3j a) 28, -12 b) 16 c) -40 d) 11, -1

(i will give brainliest/5 stars to correct answer)

Ответ:

Neko1kat

15.03.2022

To find the dot product you multiply the corresponding coordinates and then add up the products

a dot b = dot product between the vectors 'a' and 'b'
a dot b = 7*4 + (-4)*3
a dot b = 28 - 12
a dot b = 16

Choice B) 16

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Ответ:

chahdhamdy

15.03.2022

Mathematics

A•b = 7*4 +(-4)*3
= 28 -12
= 16 . . . . . matches selection B

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Ответ:

kaylarose7658

02.01.2023

Mathematics

17*3 You Can Use That Equation

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(i will give brainliest/5 stars to correct answer) find a ⋅ b. a = 7i - 4j, b = 4i + 3j a) < 28, -12> b) 16 c) -40 d) < 11, -1>

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