3 years ago

What is nine divided by two

Mathematics

1 answer:

ANTONII [103]3 years ago

5 0

Answer: 4.5

Step-by-step explanation:

9/2 = 4.5

have a good day. you have to use division, and plus, 4.5 + 4.5 = 9

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Tony had 2/3 of a pound of strawberries. Tony let his friend Larry eat 3/8 of the strawberries. How many pounds of strawberries

NARA [144]

Answer:

B) 1/4

Step-by-step explanation:

2/3lb of Strawberries. His friend at 3/8 of them so that would be 3/8 * 2/3 = 6/24 = 1/4. He ate 1/4lb of the strawberries

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3 years ago

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2 years ago

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3 years ago

Read 2 more answers

A. 16.0<br> b. 25.0<br> c. 9.0<br> d. 17.3

sveticcg [70]

Answer:

B 25.0 is the right answer

Step-by-step explanation:

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3 years ago

The standard deviation of a sample taken from population A is 17.6 for a sample of 25.

lawyer [7]

Answer:

The standard deviation of the sample mean differences is _5.23_

Step-by-step explanation:

We have a sample of a population A and a sample of a population B.

For the sample of population A, the standard deviation $\sigma_A$ is

$\sigma_A = 17.6$

The sample size $n_A$ is:

$n_A = 25$ .

For the sample of population B, the standard deviation $\sigma_B$ is

$\sigma_B = 21.2$

The sample size $n_B$ is:

$n_B = 30$ .

Then the standard deviation for the difference of means has the following form:

$\sigma=\sqrt{\frac{\sigma_A^2}{n_A}+\frac{\sigma_B^2}{n_B}}$

Finally

$\sigma=\sqrt{\frac{17.6^2}{25}+\frac{21.2^2}{30}}\\\\\sigma= 5.23$

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3 years ago