Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n) = 1 + (n - 1) (-5.7)
2 answers:
Well the first term = 1 because (n - 1) = 0 for the first term
Answer:
D) 1, -16.1, -50.3
Step-by-step explanation:
For calculate the first term of the sequence we replace n by 1 in the equation, then:
A(n)=1+(n-1)(-5.7)
A(1)=1+(1-1)(-5.7)
A(1)=1
At the same way we can calculate the fourth term of the sequence replacing n by 4 in the equation, then:
A(n)=1+(n-1)(-5.7)
A(4)=1+(4-1)(-5.7)
A(4)=1 + 3*(-5.7)
A(4)=-16.1
Finally, the tenth term of the sequence can be calculate replacing n by 10, so:
A(n)=1+(n-1)(-5.7)
A(10)=1+(10-1)(-5.7)
A(10)= 1 + 9*(-5.7)
A(10)=-50.3
Then, the first, fourth and tenth term of the sequence is 1, -16-1 and -50.3 respectively.
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I suggest drawing a graph or simply using a calculator
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Answer: 2*5^2-12
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50-12=38
the answer is C 38
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Answer:
Step-by-step explanation:
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