4)
the arrow touches the ground when the heigth is 0
so we need to replace h=0 and solve for t
<em>the arrow tuches the ground at 3.4 seconds</em>
5)
replacing
<em>solve for m</em>
<em>the mass is 13.50Kg</em>
<em />
I searched the answer up becuase I didn’t know how they got the number but I hope this helps
Keep in mind that means is the same as asking for the average. all you need to do is add all the values and divide them by the number of values, which is 5
<span>$39.99 + $31.99 + $19.99 +$23.99 + $26.99= 142.95
mean= 142.95/5 = 28.59</span>