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4 years ago

Find the sum of 6 Σ 2 3(0.5)^n-1. Show work.

Mathematics

1 answer:

ruslelena [56]4 years ago

5 0

Answer:

Step-by-step explanation:

Unfortunately it's not clear what you mean by 6 Σ 2 3(0.5)^n-1. I am going to assume that you mean summing up from n = 2 to n = 6 of the expression 3(0.5)^(n-1). Note that the "n-1" must be enclosed in parentheses.

a(2) = 3(0.5)^(2 -1) = 3(0.5) = 1.5

a(3) = 3(0.5)^(3 -1) = 3(0.5)^2 = 0.75

a(4) = 3(0.5)^(4 -1) = 3(0.5)^3 = 0.375

a(5) = 0.1875

a(6) = 0.09375

Sum these up to find the final answer.

If this is not what you expected, please start over: fix your formatting and put this problem into a new post.

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3 years ago

A motorist travels from town A to town B, which are 84km apart. If he has completed 7/8 of his journey, what is the distance he

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The distance that he has traveled exists 73km 500m.

<h3>What is the distance?</h3>

Distance exists described as the amount of space between two items or the condition of existing far apart. The distance of an object can be described as the complete path traveled by an object.

Given: A motorist travels from town A to town B, which exists 84km apart. He has finished 7/8 of his journey.

To estimate the distance that he has traveled

He covered 7/8 out of 84 km

So, 7/8 × 84 = 73.5 km

The distance he has traveled = 73 km 500 m

Therefore, the distance that he has traveled exists 73km 500m.

To learn more about distance refer to:

brainly.com/question/26550516

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