The average 8- to 18-year-old spends____ per day on average in front of a screen doing very little to

Mathematics

1 answer:

geniusboy [140]3 years ago

5 0

Answer:

3 hours or more

Step-by-step explanation:

why because of the games and entertainment

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The following table gives three different relations.

Drupady [299]

Answer:

First relation: It's a function. No order pair need to be changed.

Second relation: It's a function. No order pair need to be changed.

Third relation: It's not a function. The ordered pair (5,8) needs to be changed.

Step-by-step explanation:

A function may not have two y-values assigned to the same x-value.

Each x-element of the first relation has only one y-element associated with it. So we conclude that it's a function.

Each x-element of the second relation has only one y-element associated with it. So we conclude that it's a function.

The points (5,8) and (5,2) shows that there are two y-elements (y=8 and y=2) associated with the value x=5. So we conclude that it's not a function.

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4 years ago

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How do you use a number line to solve 235+123

Novosadov [1.4K]

Number line refers to a mathematical process of solving the equation with the use of lines.
=> 235 + 123
Starting from 0 you count 1 up to 235. Then starting from 235 you additionally count another 123.
Then from zero start counting the total number to the line you stopped when adding 123 to 235.

This simply equals to
=> 235 + 123
=> 358.
Pls. see attached image for illustration of number line.Answer here