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AveGali [126]
2 years ago
15

Sophia is organizing textbooks on her bookshelf. She has an English textbook, a biology textbook, a history textbook, and a writ

ing textbook. How many different ways can she line the textbooks up on her bookshelf?
Mathematics
2 answers:
ANTONII [103]2 years ago
5 0

Answer:

I believe it's 24 combinations.

Step-by-step explanation:

I found how many there were when starting with English, and there were six. I multiplied this by four (for the four books) and found 24.

Hope this helps! Have a nice day :)

Anika [276]2 years ago
4 0

Answer:

24 ways

Step-by-step explanation:

English, biology, history, writing

English, history, writing, biology

English, writing, biology, history

English, biology, writing, history

English, history, biology, writing

English, writing, history, biology

||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

So there is going to be 6 different ways in every textbook you put in front, [amount of textbook (4)] x [different ways (6)] = 24 ways

<u>btw there is a easier way of doing this but i forgot ;-;</u>

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Answer:

640 units squared

Step-by-step explanation:

The shape below is a trapezoid.

The formula for the  area of a trapezoid is average of the bases times the height.

The bases are the parallel lines that make up 2 of the sides of the trapezoid.

The height is the line dotted line that creates right angles and is the distance between the two bases.

The bases are 24 and 40.

To find the average, we add them together and divide by 2

(24+40)/2=64/2=32

Now, we multiply 32 by the height, which is given as the length of 20.

32*20=640

the area of the trapezoid is 640 units squared

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Answer:

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Step-by-step explanation:

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1 A can in the shape of a cylinder has a diameter of 6 centimeters and a height of 10
Ronch [10]

Answer:

radius r = 3 cm

height h = 10 cm

volume V = 282.743339 cm^3

lateral surface area L = 188.495559 cm^2

top surface area T = 28.2743339 cm^2

base surface area B = 28.2743339 cm^2

total surface area A = 245.044227 cm^2

In Terms of Pi π

volume V = 90 π cm3

lateral surface area L = 60 π cm^2

top surface area T = 9 π cm^2

base surface area B = 9 π cm^2

total surface area A = 78 π cm^2

Step-by-step explanation:

Cylinder Formulas in terms of r and h:

Calculate volume of a cylinder:

V = πr2h

Calculate the lateral surface area of a cylinder (just the curved outside)**:

L = 2πrh

Calculate the top and bottom surface area of a cylinder (2 circles):

T = B = πr2

Total surface area of a closed cylinder is:

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Agenda: r = radius

h = height

V = volume

L = lateral surface area

T = top surface area

B = base surface area

A = total surface area

π = pi = 3.1415926535898

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