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Dafna11 [192]
2 years ago
6

Find the 5th term of the sequence in which T1=8 and Tn=3t n-1

Mathematics
1 answer:
yan [13]2 years ago
6 0
T_n = 3 * T_(n-1)

Long way (always works!)
T_5 = 3*T_4,
T_4 = 3*T_3
T_3 = 3*T_2
T_2 = 3*T_1

T_5 = 3*3*3*3*T_1 = 81*T_1 = 81*8 = 648!

Short way (sometimes it works!)

T_n = 3^(n-1) * T_1 (this case is a geometric series of ratio-=3)
T_5 = 3^4*8 = 648
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Step-by-step explanation:

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3 0
2 years ago
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Answer:

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2 years ago
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Lelechka [254]

Answer:

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Explanation:

<u>Numeric Value of a Function</u>

The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:

f(x)=x^2+5x-9

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D) Correct. f(3) =15 as found above.

4 0
3 years ago
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Answer:

60°

Step-by-step explanation:

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8 0
2 years ago
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