2 years ago

If a1=1. And r=1/5 find a8

Mathematics

1 answer:

Kruka [31]2 years ago

7 0

Answer:

a₈ = $\frac{1}{78125}$

Step-by-step explanation:

The nth term of a geometric sequence is

$a_{n}$ = a₁ $(r)^{n-1}$

Here a₁ = 1 and r = $\frac{1}{5}$ , then

a₈ = 1 × $(\frac{1}{5}) ^{7}$ = 1 × $\frac{1}{78125}$ = $\frac{1}{78125}$

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At time t, the ratio of m₁ to m₂ is
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Therefore as a percentage,
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3 years ago

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MArishka [77]

Answer:

51.45 miles

Step-by-step explanation:

7 days = 60 miles

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60 - 8.55 = 51.45 miles

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2 years ago

A train travels at a speed of 90 miles per hour. How far will it have traveled<br> in 3 hour

DiKsa [7]

270 miles be 90+90+90 equals 270 and thats the answer

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2 years ago

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The heights of American men aged 18 to 24 are approximately normally distributed with mean 68 inches and standard deviation 2.5

MissTica

Answer:

78.81

Step-by-step explanation:

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2 years ago

in a classroom, 1/6 of the students are wearing blue shirts and 2/3 are wearing white shirts. there are 36 students in the class

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The fraction indicating the number of students who are not wearing either blue or white shirt is:
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Hope this helps~

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3 years ago