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Ksivusya [100]
3 years ago
11

21. Given the pattern below, which recursive formula represents the number of triangles in this sequence?

Mathematics
1 answer:
Tamiku [17]3 years ago
6 0

Answer:

its 4

Step-by-step explanation:

a 1 = 3 , a n = a n - 1 + 2

because if you aply this to the shapes that you see at problem 21 you will see that it meaches them

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Which expression shows how to find 5/6 divided 2/3?
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3 years ago
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At the beginning of spring, Taylor planted a small sunflower in her backyard. When it was first planted, the sunflower was 25 in
BlackZzzverrR [31]

Answer:

Step-by-step explanation:

The sunflower then began to grow at a rate of 2 inches per week. This means that the rate of growth of the sunflower is in arithmetic progression. We would apply the formula for determining the nth term of an arithmetic sequence which is expressed as

Tn = a + d(n - 1)

Where

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d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = 25 inches

d = 2 inches

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n = 7

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To determine the height after w weeks, Tw

n = w

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6 0
4 years ago
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aev [14]

Answer:

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Step-by-step explanation:


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riadik2000 [5.3K]

Answer:

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Step-by-step explanation:

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Simplify: 87° + x =180°

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By the vertical angles theorem, the vertical angle directly across this angle is congruent to this one. Meaning that the top triangle's angle are 67°, 93°, and unknown, which we can assign y. We can use the same method from above here.

67° + 93° + y = 180°

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