The motion of a weight that hangs from a spring is represented by the equation h=5sin(3pi/4t). it models the weights height, h, in inches above or below yhe rest position as a function of the first of time, t, in seconds. approximately when will the object be 4 inches below the rest position? round to the nearest hundredth if necessary. a. 0 seconds
b. 0.29 seconds
c. 0.39 seconds
d. 1.95 seconds

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:

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

75

step-by-step explanation:

you do x-29=46 (the number of cantaloupes sold)

in order to find x, you have to find what minus 29 equals 46, meaning you'd have to add 29 to 46.

29+46=75

if you replace x with 75, the equation looks like:

75-29=46

x=75

figure c

step-by-step explanation:

hope this .