Use the drop-down menus to complete each statement to show why √21 is between 4 and 5.

We know that

Because, 16 is less than 21 and 25 is more than 21.

Now, if we apply a square root to each part, we would have

Then, we solve each square root, except the square root of 21, because it doesn't have an exact result

, because and

So, basically, the reason why is between 4 and 5 is beacuse 21 is between 16 and 25. Then, when you apply square roots to each part, you would find that the square root of 21 is between 4 and 5. That's the reason, the position.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles