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Nesterboy [21]
3 years ago
14

Find the first, fourth, and eighth terms of the sequence.

Mathematics
2 answers:
tigry1 [53]3 years ago
6 0

Answer:

<h2>-5, -40, -640</h2>

Step-by-step explanation:

a(n)=-5\cdot2^{n-1}\\\\\text{put n = 1, n = 4 and n = 8 to the expression:}\\\\a(1)=-5\cdot2^{1-1}=-5\cdot2^0=-5\cdot1=-5\\\\a(4)=-5\cdot2^{4-1}=-5\cdot2^3=-5\cdot8=-40\\\\a(8)=-5\cdot2^{8-1}=-5\cdot2^7=-5\cdot128=-640

Makovka662 [10]3 years ago
4 0

Answer:

-5, -40, -640

Step-by-step explanation:

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1.<AFC
2.<AFD
3.<AFE
4.<AFB

#5, 6 and 7

m<BAE = 59

m<BAC  +  m<CAD + m<DAE = m<BAE
4x - 20 + x + 12 + x + 1 = 59
6x - 7 = 59
6x = 59 + 7
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answer
5.
m<BAC = 24
6.
m<CAD = 23
7.
m<BAE = 12

#8, 9 and 10

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answer

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9.
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