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levacccp [35]
4 years ago
14

For a sequence an=an-1+an-2 and a1=1, a2=2, find its first four terms​

Mathematics
1 answer:
ASHA 777 [7]4 years ago
7 0

Answer:

3, 5, 8, 13

Step-by-step explanation:

aₙ = aₙ₋₁ + aₙ₋₂

a₃ = a₂ + a₁ = 2 + 1 = 3

a₄ = a₃ + a₂ = 3 + 2 = 5

a₅ = a₄ + a₃ = 5 + 3 = 8

a₆ = a₅ + a₄ = 8 + 5 = 13

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Answer:

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Step-by-step explanation:

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Delicious77 [7]

All we need to do to solve this problem is calculate the area of a rectangle and the area of a circle, then <em><u>add them</u></em>!

____________________________

First, let's do the rectangle!

Area of a rectangle = length x width

or in this case... Area = "x" times "y"

Area = 19 × 12 = 228 square feet!

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Now, let's do the circle!

Area of a circle = πr² ...      (r = radius)

<u><em>*</em></u> In this diagram, the diameter of the circle is also the same length as "y"!

<u><em>* </em></u>And remember that<em> radius is half of the diameter</em>.

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Area of the HALF CIRCLE = 113.1 ÷ 2 = 56.5

Now let's add the <u>area of the rectangle</u> to the <u>area of the half-circle</u> to find the <u>area of THE ENTIRE FIGURE</u>!

<u>228 + 56.5 = 284.5 </u>

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6 0
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The equation would be:
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You are permitted to give up to $13,000 each year to any individual without acquiring gift tax liability. So, Barry and Mary each can gift $13,000 to anyone of their choosing. For eight recipients (3 children and 5 grandchildren), each can gift $104,000. Consequently, Barry and Mary can offer $208,000 ($104,000 x 2) to their children and grandchildren in 2013.

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