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4 years ago

Is 2,529 a multiple of 9? And is 78,423 divisible by 6?

Mathematics

1 answer:

zhannawk [14.2K]4 years ago

7 0

2,529 isn't a multiple of 9 78,423 is divisible by 6

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Write the following as a fraction in simple form 1.6

mestny [16]

Hi!
im not really sure what the answer is but i got 1 3/5
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3 years ago

Read 2 more answers

Bill has enough money to buy no more than 1/2 pound of cheese. How much cheese could he buy?

Zepler [3.9K]

1/2 I guess I don't think you typed in the question correctly. Not trying to be mean.

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4 years ago

Tiffany’s allowance is reduced $1.25 every time she forgets to clean her room.

snow_tiger [21]

Answer:

$8.75 is your answer.

Step-by-step explanation:

What you do is you multiply 1.25 by 7.

1.25 x 7 = $8.75

$8.75 is your answer.

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4 years ago

The weight of a value indicates its

jarptica [38.1K]

Answer:

mean

Step-by-step explanation:

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3 years ago

Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti

hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$

but we will find sample size "n"

$\sqrt{n} = \frac{z_{a} S.D}{maximum error}$

Squaring on both sides , we get

$n = (\frac{z_{a} S.D}{maximum error})^2$

Given 99% confidence interval (z value) = 2.56

given maximum error = 0.02

$n = (\frac{z_{a} p(1-p)}{maximum error})^2$

n≤ $(\frac{2.56X\frac{1}{2} }{0.02}) ^{2}$ ( here S.D = p(1-p) ≤ 1/2

on simplification , we get n = 4225

Conclusion:

The sample size of two samples is n = 4225

verification:-

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$ = $\frac{2.56 1/2}{\ \sqrt{4225} }$ = 0.0196

substitute all values and simplify we get maximum error is 0.02

4 0

3 years ago