The expression 1.5t + 20 predicts the height in centimeters of a plant tt days from today. what is the predicted height of the plant 5 days from today?

27.5 centimeters.

Step-by-step explanation:

We have been given an expression that predicts the height in centimeters of a plant t days from today.

To find predicted height of the plant 5 days from today we will substitute t=5 in our given expression.

Therefore, the predicted height of the plant 5 days from today will be 27.5 centimeters.

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: