3 years ago

Help me with 2 please

Mathematics

1 answer:

GarryVolchara [31]3 years ago

7 0

The answer to your question would be C 6 can be put into 18 and 24

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A whale is 24 meters long. a rhinoceros is 400cm long which is longer how much longer?

klemol [59]

The whale is longer
because 1 meter is = 100 cm

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3 years ago

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What is the answer to this. Please help ASAP.

Zigmanuir [339]

V of rec. prism = whl = 3x5x6 = 90
V of cone = 3.14 x (3)^2 (8) /3= 75.36

90 - 75.36 = 14.64

answer
14.64

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3 years ago

Does anyone notice or know why is brainly dead for many days??

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3 years ago

Sisters Amilia and Bianca play games together often. Let A represent the number of games Amilia wins monthly, and let B represen

Harman [31]

Using addition of variables, it is found that the mean of S is of 73 and the standard deviation is of 8.5.

<h3>What happens to the mean and the standard deviation when two variables are added?</h3>

The mean is the sum of the means.

The standard deviation is the square root of the sum of variances.

In this problem, for variables A and B, we have that:

$\mu_A = 35.5, \sigma_A = 5.1$

$\mu_B = 37.3, \sigma_B = 6.8$

Variable S is the sum of A and B, hence:

$\mu_S = \mu_A + \mu_B = 35.5 + 37.3 = 73$

$\sigma_S = \sqrt{\sigma_A^2 + \sigma_B^2} = \sqrt{5.1^2 + 6.8^2} = 8.5$

The mean of S is of 73 and the standard deviation is of 8.5.

More can be learned about addition of variables at brainly.com/question/26156502

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2 years ago