which of the following is equivalent to the radical below?
square root 169

a) square root of 13
b) square root of 13^2
c) square root of 13^3
d) square root of 13^4

show your work.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

How many doughnuts are equal to 20 cookies.? 3 apples = 5 bananas6 cookies = 7 apples2 doughnuts = 1 banana