hello! when finding your empirical formula units, i had 1.249063203... do i round it to a whole number? what will be the efu? or... do i multiply it to whole numbers until it becomes a whole number hehe

dude is there an image for me to understand like what is efu and whats hehe i know the laughing of hehe but is hehe for like something for math i atleast know its math but i dont understand as much

Explanation:

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.