2-4. Use trigonometric identities to solve each of the following 2. If 0.09 -- 2. find cot 9, for values of 9 between 180° and 270° (3 points)

the answer is 31.27mph

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

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify