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IgorLugansk [536]
1 year ago
9

Find the 5th term of the GP is 48 and it 8th term is 384. find the first term and the common​

Mathematics
1 answer:
rewona [7]1 year ago
7 0

Answer:

\text{1st term} = 3\\\\\text{Common ratio} = 2

Step by step explanation:

\text{Given that,}\\\\\text{5th term} = ar^{5-1} = ar^4 = 48~~~~~~~~...(i)\\ \\\text{8th term} = ar^{8-1} = ar^7 = 384~~~~~~~...(ii)\\\\\text{1st term,}~ a = ?\\\\\text{Common ratio,}~ r = ?\\\\(ii) \div (i):\\\\~~~~~~\dfrac{ar^7}{ar^4}=\dfrac{384}{48}\\\\\implies r^{7-4} = 8\\\\\implies r^3 = 8\\\\\implies r^3 = 2^3\\\\\implies r =2\\\\\text{Substitute r = 2 in eq (i):}\\\\~~~~~~a\cdot 2^4 = 48\\\\\implies 16a  =48\\\\\implies a = \dfrac{48}{16}\\\\\implies a = 3\\

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Answer:

4 possible outcomes

Step-by-step explanation:

we know that

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In this problem

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<em>The probability of choose a green card is </em>

x=4

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<em>The probability of choose a red card is </em>

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<em>The probability of choose a yellow card is </em>

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Step-by-step explanation:

Many calculators can solve triangles. Apps are available for phone and tablet, or on the internet, like the one used here. In general, it takes less time to use one of these than to type your question into Brainly.

Given two sides and the angle between them, the Law of Cosines is the appropriate relation to use for finding the third side.

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One a side and its opposite angle are known, the remaining angles are found using the Law of Sines.

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