The Recursive formula for an Arithmetic Sequence is a1 = -3, an = an-1 + 6.
<h3>What is Arithmetic sequence ?</h3>
An arithmetic sequence is a sequence where each term increases by adding/subtracting some constant k.
Given:
an = -3 + 6(n – 1)
a1= -3
a2= 3
a3 = 9
Here the common difference is 6 and first term is -3
Hence, the recursive formula is a1 = -3, an = an-1 + 6.
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Step-by-step explanation:
Since we have given that
Number of hour Marco practiced the piano on Monday is given by

Number of hours Marco practiced the piano on Tuesday is given by

1) For Adding :
Total number of hours he practiced on both Monday and Tuesday will be

2) For Subtraction,
Number of hour he practiced more on Tuesday than on Monday will be

Answer:
x = 13
Step-by-step explanation:
6x + 14 + 4x - 8 + 2x + 18 = 180 {Angle sum property of tiangle}
6x + 4x + 2x + 14 - 8 +18 = 180 {Combine like terms}
12x + 24 = 180 {Subtract 18 from both sides}
12x = 180 - 24
12x = 156 {Divide both sides by 12}
x = 156/12
x = 13
Answer:
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Step-by-step explanation:
Answer:
try Math
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