Find $S _ { 1 } , S _ { 2 }$

question 87

Multiple Choice

Find $S _ { 1 } , S _ { 2 }$ and $S _ { 6 }$ for $a _ { n } = 8 n + 9$ .

• A) \(S _ { 1 } = 17 ; S _ { 2 } = 34 ; S _ { 6 } = 102\)
• B) \(S _ { 1 } = 17 ; S _ { 2 } = 25 ; S _ { 6 } = 57\)
• C) \(S _ { 1 } = 17 ; S _ { 2 } = 25 ; S _ { 6 } = 177\)
• D) \(S _ { 1 } = 17 ; S _ { 2 } = 33 ; S _ { 6 } = 177\)
• E) \(S _ { 1 } = 17 ; S _ { 2 } = 42 ; S _ { 6 } = 222\)

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Definitions:

Metals

Elements that are good conductors of electricity and heat, have a shiny appearance, and are malleable and ductile.

Tin

A chemical element with the symbol Sn and atomic number 50, known for its corrosion resistance and used in alloys and coatings.

Zinc

A metallic element with symbol Zn, necessary for human health and used in alloys such as brass, in galvanization, and in various chemical reactions.

Copper

A reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, used in a wide variety of applications.