17 a) Find the nth term of the arithmetic sequence 1,11,21,31,41....b) Find the 100th term.

Mathematics

1 answer:

Citrus2011 [14]3 years ago

4 0

Step-by-step explanation:

use the formula a+(n-1)d

a=(first value in sequence)=1

n=100(the term you are finding)

d=(difference)(it is increasing by 10

substitute the value in the formula

1+(100-1)10

100th term=991

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y=-3x² + x -4
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are the points when y=0

using a graph tool
see the attached figure

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