round each time to the nerast whole second. then estimate how many seconds baily won the race bye balily 35.78 and elena 39.51 please help me

hi, i am not sure about this one but i think its d,

hope this !

78.59 is the mean

step-by-step explanation:

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!