On a number line a number b is located the same distance from 0 as another number a but in the oppsite direction the numbber b v
2 answers:
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Answer:
= 4n + 11
Step-by-step explanation:
There is a common difference between consecutive terms, that is
19 - 15 = 23 - 19 = 4
This indicates the sequence is arithmetic with explicit rule
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 15 and d = 4 , then
= 15 + 4(n - 1) = 15 + 4n - 4 = 4n + 11
Answer:
40320 ways
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Step-by-step explanation:
Given
Paintings = 8
Required
Determine the number of arrangements
From the question, we understand that the order of arrangement matters;
This implies permutation and is calculated as thus;
In this case,
, because all paintings are hung;
Substitute 8 for n and r, respectively
Evaluate the denominator
<em>Hence, the number of arrangement is 40320 ways</em>