Lena found a 5/8-carat diamond ring in the parking lot and turned it in to the police. afterward, her friends discussed the weight of the diamond in terms of decimal numbers. lena said it weighed 0.275 carats, but sheldon thought it was closer to 0.58 carats. naomi predicted the ring weighed 0.625 carats, but mark disagreed and said 0.8 carats. paula went with 0.875 carats. who had the correct measurement?

Naomi had the correct measurement.

Step-by-step explanation:

Given,

The measurement of the diamond ring measured by Lena = carat

Since,

Thus, the measurement of the diamond ring = 0.625 carat,

Since, Naomi predicted the ring weighed 0.625 carats,

Hence, she had the correct measurement.

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: