Register
Find a ⋅ b. a = 9i + 5j, b = 4i + 3j
169k views
5 votes
Find a ⋅ b.

a = 9i + 5j, b = 4i + 3j

User Kc Bickey
by
8.8k points

2 Answers

4 votes
it would be 5i x -2j
User Jonah
by
7.4k points
3 votes
I hope this helps you




(9i+5j)(4i+3j)



9i.4i+9i.3j+5j.4i+5j.3j


36i^2+27ij+20ij+15j^2


36i^2+47ij+15j^2
User Halfred
by
8.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!