Bobby is holding onto the end of a spring that is attached to a ball. As he moves his hand slightly up and down, the ball
moves up and down. With a little concentration, he can repeatedly get the ball to reach a maximum height of 30 cm and a
minimum height of 8 cm from the top of the surface. If he begins out with the ball at the lowest position and then starts a
timer, the first maximum height will occur after 0.3 seconds. Determine the equation of the sinusoidal function that
represents the height of the ball in terms of time.

inverse property is the answer

step-by-step explanation:

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

486in is correct

step-by-step explanation: