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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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Jackie has one sister. Jackie's sister is 4 years older than her. The girls' ages add up to 28. Write an equation to solve for J
ZanzabumX [31]

Answer:

Jackie's age = 12 years and Her sister's age = 16 years

Step-by-step explanation:

Let the age of Jackie be x.

Her sister's age = (x+4)

The sum of ages = 28

ATQ,

x+x+4 = 28

2x+4 = 28

2x = 24

x = 12

Jackie's age = 12 years

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Hence, this is the requiredsolution.

3 0
2 years ago
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Answer:

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3 years ago
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dimaraw [331]

Answer:

=468 m^2

Step-by-step explanation:

Surface area of a prism is

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5 0
3 years ago
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A doctor prescribes 150 milligrams of a therapeutic drug that decays by about 15% each hour. To the nearest hour, what is the ha
Nikolay [14]

Answer:

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Rounded to the nearest  hour, x = 4.

3 0
2 years ago
The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as mc024-1.j
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We have the given I = 10^-1 and I₀ = 10^-12.

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(I used a scientific calculator in solving for L).
8 0
3 years ago
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