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2 years ago

Envision geometry 9-1 additional practice polygons in the coordinate plane

1 answer:

3 0

An Envision geometry 9-1 additional practice is known to be a textbook that covers topics in geometry such as polygons, shapes, etc.

<h3>What is the enVision Geometry about?</h3>

This is known to be a textbook that is made up of Solutions and and answers to geometry questions.

The use of enVision Geometry includes is one that provides students with exercises, process step by step of solving geometry cases.

Learn more about geometry from

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How agriculture is the source of economic growth

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Explanation:

“Increase in agricultural production and the rise in the per-capita income of the rural community, together with the industrialisation and urbanisation, lead to an increased demand in industrial production”

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Which of the following distinguishes why sea ranching is considered more humane than captive forms of aquaculture?

dimulka [17.4K]

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because it relies on the natural instincts of fish

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3 years ago

The mean yearly rainfall in Sydney, Australia, is about 137 mm and the standard deviation is about 69 mm ("Annual maximums of,"

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I hope this answers the question

Explanation:

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3 years ago

Ivan was given two data sets, one without an outlier and one with an outlier. data without an outlier: 108, 113, 105, 118, 124,

Debora [2.8K]

Median is the middle data in the list of the given numbers. In the given data set the median gets decreased by the presence of the outlier. Thus, option C is correct.

<h3>What is an outlier?</h3>

An outlier is a data that varies significantly from the other data set, due to some error or measuring variability.

The median of the data without outlier is calculated as:

First, data is arranged in the ascending order: 105, 108, 109, 113, 118, 121, 124

Median = $\rm \dfrac{7 + 1 ^{th}}{2} term$

= 4th term

= 113

The median of the data with outlier is calculated as:

First, data is arranged in the ascending order: 61, 105, 108, 109, 113, 118, 121, 124

Median = $\rm \dfrac{(\dfrac{8}{2})^{th} + (\dfrac{8}{2} + 1)^{th}} {2}$

= (109 + 113) ÷ 2

= 111

Therefore, the outlier decreased the median.

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2 years ago

If 50. 0 g of ch₃oh (mm = 32. 04 g/mol) are added to a 500. 0 ml volumetric flask, and water is added to fill the flask, what is

Elza [17]

Taking into account the definition of molarity, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{liters}$ .

<h3>Concentration of CH₃OH</h3>

In this case, you know:

number of moles= 50 g× $\frac{1 mole}{32.04 g}$ = 1.56 moles, being 32.04 $\frac{g}{mole}$ the molar mass of CH₃OH
volume= 500 mL= 0.5 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

$Molarity=\frac{1.56 moles}{0.500 L}$

Solving:

<u><em>Molarity= 3.12 </em></u> $\frac{moles}{liters}$

Finally, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

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2 years ago