What is principal root of square root 1

+1

Step-by-step explanation:

Here, we want to find the principal route of square root 1

When we talk of the principal root, we are simply talking of the square root of 1 which is non-negative

The square root of 1 can either be -1 or +1

But the principal root is the one which is not negative

answer: a and b

step-by-step explanation:

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