3 years ago

Help asap please I really need it

Mathematics

1 answer:

Svetlanka [38]3 years ago

3 0

The answer would be B. About 92 cubic feet. Have a good rest of your day.

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zavuch27 [327]

It may be easier to start from

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The quadratic
.. ax^2 +bx +c = 0 will have solutions -3 and 1 for ...

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3 years ago

What are the first 5 terms of the sequence where a=1 a, a2=2 and an=1/2(a n-1•a n-2)

Sliva [168]

Answer:

$\large\boxed{a.\ 1,\ 2,\ 1,\ 1,\ \dfrac{1}{2}}$

Step-by-step explanation:

We have the recursive formula of a sequence:

$\left\{\begin{array}{ccc}a_1=1\\a_2=2\\a_n=\dfrac{1}{2}(a_{n-1}\cdot a_{n-2})\end{array}\right\\\\\text{thereofre}\\\\a_3=\dfrac{1}{2}(a_2\cdot a_1)=\dfrac{1}{2}(2\cdot1)=\dfrac{1}{2}(2)=1\\\\a_4=\dfrac{1}{2}(a_3\cdot a_2)=\dfrac{1}{2}(1\cdot2)=\dfrac{1}{2}(2)=1\\\\a_5=\dfrac{1}{2}(a_4\cdot a_3)=\dfrac{1}{2}(1\cdot1)=\dfrac{1}{2}(1)=\dfrac{1}{2}$