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Mrrafil [7]
3 years ago
5

Write the first three terms in the following sequences. Identify them as arithmetic or geometric

Mathematics
1 answer:
lara [203]3 years ago
6 0

Answer:

10, 1, 0.1, 0.01

It is a geometric sequence

Step-by-step explanation:

A(n + 1) = A(n) ÷ 10  for  n ≥ 1  and  A(1) = 10

A(1+1) = A(2) = A(1) / 10 = 10 / 10 = 1

A(2+1) = A(3) = A(2) / 10 = 1 / 10 = 0.1

A(3+1) = A(4) = A(3) / 10 = 0.1 / 10 = 0.01

It corresponds to a geometric sequence, which is defined by its starting number a (10), the common factor r (0.1) and the number of terms S.

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melisa1 [442]

Answer: 254,34 mm².

Step-by-step explanation:

S{circle}=\pi R^2\\S{circle}=3,14*9^2\\S{circle}=3,14*81\\S{circle}=254,34\  mm^2.

7 0
1 year ago
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Base = 5 * 12 = 60 in^2

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Perimeter of base = 12 * 2 + 5 * 2 = 34

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2 years ago
Alyssa can complete a job in 12 minutes. If Miranda helps her, they can complete the job in 9 minutes. How long would it take Mi
miv72 [106K]

Answer:

36 minutes

Step-by-step explanation:

The key is to get the same amount of time for each.

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At 12 minutes per job,

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At 9 minutes per job,

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In 108 minutes Mirada does

12 - 9 = 3 jobs

108/3 = 36 minutes per job

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Professor Stats has 40 students in her statistics class. 24 of the students are male. If she randomly selects 6 of her students
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