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marissa [1.9K]
3 years ago
7

Which of the following technologies was a reason for t

Mathematics
2 answers:
Arturiano [62]3 years ago
6 0
Idyfhfhghhvhcuu hi bunch mjchfy
nikklg [1K]3 years ago
5 0

Answer:

D: Radio

Step-by-step explanation:

The radio was the main source of entertainment during the 1920's

(and i j got it right)

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The areas of two similar triangles are 75m2 and 300m2. The length of one of the sides of the second triangles is 9m. What is the
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Answer:

4.5 m

Step-by-step explanation:

The area of two similar triangles are 75 m2 and 300 m2. This gives you the scale factor of the triangles:

\dfrac{A_{small}}{A_{large}}=k^2\Rightarrow k^2 =\dfrac{75}{300}=\dfrac{3}{12}=\dfrac{1}{4}\Rightarrow k=\dfrac{1}{2}.

Then you can find the length of the corresponding side:

\dfrac{side_{small}}{side_{large}}=k\Rightarrow =\dfrac{side_{small}}{9}=\dfrac{1}{2},\ side_{small}=\dfrac{9}{2}=4.5\ m.

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3 years ago
In the Cartesian Coordinate System, the intersection of the axis is called the origin. What is this called in the Polar coordina
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3 years ago
Three sevenths divided by five
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3 years ago
5x – 6y = –29: ( __, 4)
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Hola, qué tal tu día
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3 years ago
the late fee for library books is $2.00 plus 15 cents each day for a book that is late. If Maria's fee for a late book was $3.20
love history [14]

Answer:

Maria's book was 8 days late

Step-by-step explanation:

According to the information given, you can write an equation that states that 15¢ multiply for the number of days that the book was late plus $2 is equal to $3.20:

0.15x+2= 3.20

x= number of days that the book was late

Now, you have to solve for x:

0.15x= 3.20-2

0.15x= 1.20

x= 1.20/0.15

x= 8

The book was 8 days late.

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2 years ago
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