What is 2/3 divided by 9?

Mathematics

1 answer:

Dima020 [189]3 years ago

8 0

2/3 is about .66 so do .66 divided by 9 and you get .073

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Evaluate −3x+5y when x=16 and y=14. Write your answer as a fraction in simplest form.

disa [49]

To answer this, you insert 16 in for X to get 48. Since there is a negative sign, 48 becomes -48. Then, replace Y with 14 to get 70. You are left to solve -48 + 70. I don't know why you would need a fraction, but if you do just put (answer)/1

5 0

2 years ago

A polling agency is investigating the voter support for a ballot measure in an upcoming city election. The agency will select a

Setler79 [48]

Answer:

The value is $P( X > 0.50) = 0.089264$

Step-by-step explanation:

From the question we are told that

The sample size is n = 500

The population proportion is p = 0.47

Generally given that the sample size is sufficiently large , the mean of this sampling distribution is mathematically represented as

$\mu_x = p = 0.47$

Generally the standard deviation of the sampling distribution is mathematically represented as

$\sigma = \sqrt{\frac{p(1- p )}{ n} }$

=> $\sigma = \sqrt{\frac{ 0.47 (1-0.47 )}{ 500 } }$

=> $\sigma = 0.0223$

Gnerally the probability that the proportion of voters in the sample of Region A who support the ballot measure is greater than 0.50 is mathematically represented as

$P( X > 0.50) = P( \frac{ X - \mu }{ \sigma } > \frac{ 0.50 - 0.47 }{ 0.0223 } )$