A buoy floating in the ocean is bobbing in simple harmonic motion with period 7 seconds and amplitude 6 ft. Its displacement d from sea level at time t=0 seconds is 0 ft, and initially it moves upward. (Note that upward is the positive direction.) Give the equation modeling the displacement d as a function of time t.
d=

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

a

step-by-step explanation: