Question

Calculate the number of seconds in a week. Express the number in power of 10 notation?​

Answer 1

To calculate the number of seconds in a week, we need to determine the number of seconds in a day and then multiply it by 7 (the number of days in a week). Here's the calculation:

Number of seconds in a minute: 60 seconds

Number of minutes in an hour: 60 minutes

Number of hours in a day: 24 hours

Number of seconds in a day: 60 seconds/minute * 60 minutes/hour * 24 hours/day = 86,400 seconds

Number of seconds in a week: 86,400 seconds/day * 7 days/week = 604,800 seconds

Now, let's express this number in power of 10 notation. To do that, we count the number of digits in the number (6) and use it as the exponent for 10:

604,800 seconds = 6.048 * 10^5 seconds

So, there are 6.048 x 10^5 seconds in a week.

Step-by-step explanation:

Answer 2

There are 6.048 × 10^5 seconds in a week.

Step-by-step explanation:

We have,

• There are 24 hours in a day.
• There are 60 minutes in an hour.
• There are 60 seconds in a minute.

So,

`\textsf{there are }\sf 24*60*60 = 86400 \textsf{ seconds in a day.}`

If we multiply that number by 7, the number of days in a week, we get

`\sf 7 *86400 = 604800 \textsf{ seconds in a week.}`

To express this number in scientific notation, we need to move the decimal point 5 places to the left,

because 604800 is equivalent to
`\sf 6.048 * 100000.=6.048*10^5`

Therefore, there are 6.048 × 10^5 seconds in a week.