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vampirchik [111]

3 years ago

13

Use the formula to evaluate the infinite series riund to the nearest hundredth if necessary 9+3+1+

1 answer:

VikaD [51]3 years ago

6 0

Sum to infinity = a1 / ( 1 - r) (This is a geometric series a1 = first term, r = common ratio)

Here r = 3/9 = 1/3 and a1 = 9

So the answer is 9 / (1 - 1/3) = 9 / 2/3 = 9 * 3/2 = 13.5 Answer

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What is 0.5 divided by 2.675

eduard

.186915888

that is the answer

if I meant 2.675 divided by .5 it is 5.35

7 0

2 years ago

Read 2 more answers

Shoe sizes and foot length are related by the formula S = 3F - 24, where S represents the shoe size and F represents the length

eimsori [14]

Answer:

$\dfrac{S + 24}{3}$

Step-by-step explanation:

$\begin{array}{rcll}S & = & 3F - 24&\\S + 24 & = & 3F&\text{Added 24 to each side}\\F & = &\mathbf{\dfrac{S + 24}{3}}&\text{Divided each side by 3}\\\\\end{array}$

7 0

3 years ago

The arrival of the city busses that trundle down my street is Poisson distributed. According to the published schedule, they arr

joja [24]

Answer:

There is a 3.33% probability that exactly two such busses arrive within 3 minutes of each other.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

What is the probability that exactly two such busses arrive within 3 minutes of each other

The mean is one bus each 10 minutes. So for 3 minutes, the mean is 3/10 = 0.3 buses. So we use $\mu = 0.3$

This probability is P(X = 2).

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 2) = \frac{e^{-0.3}*(0.3)^{2}}{(2)!} = 0.0333$

There is a 3.33% probability that exactly two such busses arrive within 3 minutes of each other.

5 0

2 years ago

2x+3y evaluate the expression when x=2 and y=-3

ELEN [110]

Answer:

2(2)+3(-3)=

4-9=

-5

Step-by-step explanation:

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2 years ago

Is Jason du-b? (answer yes with an explanation)

Sladkaya [172]

:|

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8 0

2 years ago