A _____ tessellation is a tessellation that uses only one regular polygon to cover a surface completely.

Mathematics

1 answer:

matrenka [14]3 years ago

6 0

Answer:

Regular

Step-by-step explanation:

The answer to this question is a regular tessellation. A regular tessellation can be explained as a cover design of the plane which is done by making use of 1 type of regular polygon.

In order To make a regular tessellation, we have to make sure that the internal angle of the polygon can divide 360. This way there won't be gaps.

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New heat lamps are reported to have the mean lifespan of 100 hours with a standard deviation of 15 hours. Before replacing their

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Answer:

The correct option is C

The correct option is A

The correct option is B

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 100$

The standard deviation is $\sigma = 15$

The sample size is $n = 36$

The sample mean is $\= x = 105.1$

Generally

The null hypothesis is $H_o: \mu = 100 \ hours$

The alternative hypothesis is $H_a : \mu \ne 100\ hours$

Given that the null hypothesis is true then the distribution of sample means $\mu_{\= x }$ , from a sample size of 36 is mathematically represented as

$\mu_{\= x } = \mu$

=> $\mu_{\= x } = 100$

According to the Central Limit Theorem the test stated in the question is approximately normally distributed if the sample size is sufficiently large $(n > 30 )$ so given that the sample size is large n = 36