shadowvenom7I8 shadowvenom7I8

23-07-2020
Mathematics

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25 points pls hurry im timed Find a b if a = 3i + 8j and b = -0.5i - 4j.

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mallikabatra mallikabatra

23-07-2020

Answer:

-1.5[tex]i^2[/tex]-32[tex]j^2[/tex]-16ij

Step-by-step explanation:

When you substitute it you will get (3i+8j)(-0.5i-4j)

Then you will use FOIL

From this, you get -1.5[tex]i^2[/tex]-32[tex]j^2[/tex]-16ij

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