The formula a=1/2hb1 +1/2hb2 the area of a trapezoid, as a function of the height and the two bases , b1 and b2. for a trapezoid-shaped garden with one base measuring 16 feet a height of 12 feet and an area of 168 square feet. 168=1/2(12)16+1/2(12)b2 what is the length b2 in inches

answear:

a

step-by-step explanation: a

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: