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2 years ago

7

How do I do 1 and 5?

1 answer:

Nat2105 [25]2 years ago

8 0

I will show you how to do #5:

a). -20 + 2(n-1) Original Expression
-20 +2n - 2 Distributive Property
-22 + n Combine Like Terms

Final Expression: -22 + n

b). 1.5 + (-2.5)(n -1) Original Expression
1.5 + -2.5n + 2.5 Distributive Property
4 - 2.5n Combine Like Terms

Final Expression: 4 - 2.5n

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2 years ago

What is the closed linear form for this sequence given a1 = 0.3 and an + 1 = an + 0.75?

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Step-by-step explanation:

Given that the first term $a_{1}=0.3$ and $a_{n+1}=a_{n}+0.75$

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The formula for arithmetic sequence is

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Comparing this we get d=0.75

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