Find the Indicated Vector $a = \langle - 4 , - 7 \rangle$

question 390

Multiple Choice

Find the indicated vector.
-Let $a = \langle - 4 , - 7 \rangle$ . Find $- 5 a$ .

• A) \(\langle - 20 , - 35 \rangle\)
• B) \(\langle 20 , - 35 \rangle\)
• C) \(\langle - 20,35 \rangle\)
• D) \(\langle 20,35 \rangle\)

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Definitions:

Atactic Poly(acrylonitrile)

A type of polyacrylonitrile polymer where the methyl side groups are randomly distributed along the polymer chain, leading to an amorphous material.

Anionic Polymerization

A type of chain growth polymerization where the reactive center is an anion, allowing for the synthesis of polymers with narrow molecular weight distribution.

Chain Branching

Refers to the creation of alkyl branches from a main carbon chain in organic molecules, affecting physical and chemical properties.

Cationic Polymerization

A type of polymerization where the polymer growth occurs through the reaction of a cationic initiator with a monomer forming a polymer chain.