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Answered

A rocket rises 30 Feet after a second, 85 feet after 2 seconds, and 140 feet after 3 seconds. If it continues to rise at this rate, how many feet will it rise after 10 seconds?

A. 525ft
B. 580ft
C. 615ft
D. 925ft​

Sagot :

Chachasmoothgo

Answer:

A. 525ft

Step-by-step explanation:

formula: [tex]a_{n} = a_{1} +(n-1) d[/tex]

Solution:

d= 85-30

d= 55

[tex]a_{10}= 30+(10-1)55\\a_{10}= 30+(9)55\\a_{10}=30+495\\a_{10}=525ft[/tex]

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