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3 years ago

Find the 98th term for the arithmetic sequence 3,4.2,5.4,6.6,7.8,...

Mathematics

1 answer:

prisoha [69]3 years ago

6 0

A₁ = 3
a₂ = 4.2

d = a₂ - a₁
= 4.2 - 3
= 1.2

a₉₈ = a₁ + d(n-1)
= 3 + 1.2(98-1)
= 3 + 1.2×97
= 3 + 116.4
= 119.4

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Angelina_Jolie [31]

The unit rate you're trying to find is pages per day(or p/d), so the equation needs to have both a unit for pages and for days.
The equation we have is:
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2 years ago

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w represents width

4w represents length

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w2 + (4w)2 = d2

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And replacing we got:

$P(X \geq 7) = P(X=7) +P(X=8)=0.3826 +0.4305=0.8131$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest "number of automobiles with both headligths working", on this case we now that:

$X \sim Binom(n=8, p=0.9)$