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3 years ago

Find the area of the following figure: 14ft 6ft 9ft

Mathematics

1 answer:

lisov135 [29]3 years ago

7 0

Step-by-step explanation:

s = a+b+c / 2

= 14+6+9 / 2

= 14.5 feet

Area = √s(s-a)(s-b)(s-c)

= √14.5×(14.5 - 14)×(14.5 - 6)×(14.5 - 9)

ANSWER: 18.410255294265 feet^2

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Answer:

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$\bar X_2$ represent the sample for the sample 2

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Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

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The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

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Solution to the problem

We assume that we have the following statistics:

$\bar X_1$ represent the sample for the sample 1

$\bar X_2$ represent the sample for the sample 2

$s_1$ represent the deviation for the sample 1

$s_2$ represent the deviation for the sample 2

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$n_2 = 81$ represent the sample size for the group 2

And on this case if we create the system of hypothesis we have this:

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Alternative hypothesis: $\mu_1 -\mu_2 >0$

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oksian1 [2.3K]

Answer:

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Step-by-step explanation:

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