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3 years ago

Can someone help me with this I have a few hours before I have to turn this in anything is appreciated

Mathematics

1 answer:

Tomtit [17]3 years ago

5 0

Answers

1. 78.5398163397 cm^2
2. 201.06192983 cm^2
3. 38.4845100065 ft^2
4. 176.714586764 m^2
5. 1963.49540849 in^2

Explanation:

The formula for the area of a semicircle is πr^2/2 where r is the radius.

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Graph the image of this figure after a dilation with a scale factor of 12 centered at the origin.

andreev551 [17]

Answer:

The vertices of image are (-48,48), (24,24) and (72,96).

Step-by-step explanation:

From the figure it is noticed that the vertices of triangle are (-4,4), (2,2) and (6,8).

The scale factor is 12 and the dilation is about the origin.

If a figure is dilated about the origin with scale factor k, then

$(x,y)\rightarrow (kx,ky)$

Since the scale factor is 12.

$(x,y)\rightarrow (12x,12y)$

The vertices of image are

$(-4,4)\rightarrow (-48,48)$

$(2,2)\rightarrow (24,24)$

$(6,8)\rightarrow (72,96)$

Therefore the vertices of image are (-48,48), (24,24) and (72,96). The graph of image is shown below.

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3 years ago

Read 2 more answers

Is the relation ship shown by the data linear? if so model the data with an equation pls help

svet-max [94.6K]

It is not linear. Check to see if the points fit in any of the equations. Use 3 for x and 1 for y. None of them work. You get false statements like 3=1.

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4 years ago

What is the answrs for number 9, with proof

Nuetrik [128]

Answer:

1. 30

2. 34

Step-by-step explanation:

2(4(3) + 3)

2(12 + 3)

2(15)

= 30

12(3) - 2

36 - 2

= 34

hope this helps :)

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3 years ago

The density of aluminum is 2.375 grams per cubic centimeter. Find the volume of a portion of a sheet of aluminum that has a mass

abruzzese [7]

This is the concept of density, volume and mass of different materials; To calculate for the volume of an aluminium material with density of 2.375 grams per cubic centimeter and a mass of 0.78 Kilogram we proceed as follows;

Density=mass/volume
making volume the subject we get;
volume=mass/density
thus;
mass=0.78 kg= 780 g
density=2.375 g/cm^3
Hence,
volume=780/2.375=328.421 cm^3

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4 years ago

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The transitive property of equality states that _____. if a = b, then b = a if a = b, then ac = bc if a = b and b = c, then a =

evablogger [386]

Answer:

If a = b and b = c, then a = c

Step-by-step explanation:

The transitive property of equality tells us that if we have two things that are equal to each other and the second thing is equal to a third thing, then the first thing is also equal to the third thing.

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4 years ago