Answer:
11.9440
Step-by-step explanation:
long division
Answer:
13a-3
Step-by-step explanation:
7a-(4a-8a+3)+2a First, distribute the negative 1.
7a-4a+8a-3+2a Combine like terms.
13a-3
Answer:
23
Step-by-step explanation:
1
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23
Answer:
The temperature was 6 degrees at 10 am.
Step-by-step explanation:
Answer:
a_{n} = a_{1} + (n-1)d
a_n = the nᵗʰ term in the sequence
a_1 = the first term in the sequence
d = the common difference between terms
The general term of an arithmetic sequence can be written in terms of its first term a1, common difference d, and index n as follows: an=a1+(n−1)d. ... The nth partial sum of an arithmetic sequence can be calculated using the first and last terms as follows: Sn=n(a1+an)2.