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3 years ago

Please use the following image below in order to answer the question correctly:

Mathematics

1 answer:

kaheart [24]3 years ago

3 0

Answer:

DE=145

Step-by-step explanation:

Both circles are congruent and so are the triangles, because of the radius. So mDE is also 145

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If Martin scored a 77 and an 83 on his last two quizzes, what was his quiz average

mihalych1998 [28]

His average is 80%. You take the two scores add them up and divide by the number of scores.

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3 years ago

Suppose a researcher compiled a data set consisting of the following variables for a sample of 100 retired men. For each variabl

kondaur [170]

Answer:

a) Discrete Variable

b) Discrete Variable

c) Discrete Variable

d) Continuous Variable

Step-by-step explanation:

We have to identify the given variable as discrete r continuous.

Discrete Variables:

They are expressed in whole numbers.
They are counted not measured.
They cannot take any value within an interval.

Continuous Variables:

They are expressed in decimal numbers.
They are measured not counted.
They cannot take any value within an interval.

a) The number of countries ever visited

Since number of countries will always be expressed in whole numbers and not decimals. Also, they will always be counted and not measured. Thus, it is a discrete variable.

b) The number of sons

Since number of sons will always be expressed in whole numbers and not decimals. Also, they will always be counted and not measured. Thus, it is a discrete variable.

c) Shoe size

Shoe size are expressed in whole number. The underlying measure is length of feet which is a continuous variable but shoe size are always given in whole number. Thus, they cannot take any value within an interval. Thus, it is a discrete variable.

d) Body temperature

Body temperature can be expressed in decimal. A Body temperature of 42.5 makes sense. Thus, they can take any value within an interval. Also, it is measured not counted. Thus, it is a discrete variable.

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3 years ago

Why is a rhombus considered a type of quadrilateral?

leonid [27]

Answer:

Well a rhombus is considered a quadrilateral because it has 4 sides and 4 angles.

Just like a square and rectangle they both are quadrilaterals with 4 angles and sides.

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4 years ago

you are draining a fish pond. The amount Y in liters of water remaining after X hours is y equals -60x + 480 a graph the equatio

Sergeu [11.5K]

Answer:

The graph in the attached figure

see the explanation

Step-by-step explanation:

Let

x----> the time in hours

y ----> liters of water remaining in the fish pond

we have

$y=-60x+480$

This is the equation of a line in slope intercept form

$y=mx+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

The slope or unit rate is equal to

$m=-60\ \frac{liters}{hour}$ ----> is negative because is a decreasing function

The y-intercept or initial value is

$b=480\ liters$

The graph in the attached figure

Remember that

The y-intercept is the value of y when the value of x is equal to zero

The y-intercept is the point (0,480)

That means----> The initial amount of liters of water in the fish pond was 480 liters before drainage began (for x=0 hours).

The x-intercept is the value of x when the value of y is equal to zero

The x-intercept is the point (8,0)

That means----> The time required to empty the fish pond is 8 hours (for y=0 liters)

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3 years ago

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2.34!! And thank you<33

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3 years ago