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3 years ago

if i had 900 susbcribers and i lost 10 the next day and the day after hwo mnay susbcriebrs wouls i have

Mathematics

2 answers:

ankoles [38]3 years ago

7 0

Answer:

Step-by-step explanation:

you would lose about 1 subscriber every 2.2 hours so about 1.3 subscribers would be gone evrey 2 hours.

Irina18 [472]3 years ago

6 0

You would have 880 subscribers

900-10-10=880

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julsineya [31]

Answer:

-4409/100

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3 years ago

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Let f be continuous on [0, a] and differentiable on (0, a), Prove that if f(a)=0 then there is at least one value of x in (0, a)

asambeis [7]

Answer:

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Step-by-step explanation:

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2 years ago

Jose's mom gave him

goldenfox [79]

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2 years ago

A researcher surveyed 220 residents of a city about the number of hours they

olga55 [171]

Answer:

Margin of error of 0.0485 hours.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$\sigma = 0.35, n = 220$

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$M = 1.96\frac{0.35}{\sqrt{200}}$

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2 years ago

Find the missing number: 70, 102, ?, 178, 222

irakobra [83]

Answer:

138

Step-by-step explanation:

70 + 32 = 102

102 + 36 = 138

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2 years ago