If a2=8, what are the first three terms of the sequence defined by the recursive formula below? an=3an-1+2

2 answers:

7 0

The answer is Letter B - 2, 8, 26

<span>Given: an=3an-1+2 ; where a2=8
Required: First three terms of the sequence - a1, a2, a3
Solution:

You need to work back to get a1 since the given is a2.</span><span>
To work back, minus 2 from 8 first before dividing the number by 3.
a1 = 8 - 2
a1 = 6 / 3
a1 = 2

In getting a3, multiply the given 8 by 3 then add 2. </span>an=3an-1+2 : a3=3(8)+2<span>
a3 = 8 x 3
a3 = 24 + 2
a3 = 26</span>

nordsb [41]3 years ago

4 0

Answer:

The answer is B. I failed this test like five times but I finally figured out its B.

Step-by-step explanation:

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The two rectangular prisms are similar. What is the volume of the larger rectangular prism? 240 cm³ 540 cm³ 1620 cm³ 3240 cm³ A

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$V = a \times b \times c \: \rm unit^3$

<h3>What are similar figures?</h3>

They are scaled. It means, if two figures are similar, then we can get one figure from another by multiplying some constant value(same for one pair of similar figure) to its dimensions.

For example,

if for given case, one rectangular prism has got dimensions a, b, and c centimetres, then

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For first prism(smaller), its one side is given to be 5 cm, let its other two sides be 'b' cm, and 'c' cm, then,

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