Answer:
s = [tex]\frac{19}{4}[/tex]
Step-by-step explanation:
substitute the given values into the equation
s = (10 × [tex]\frac{1}{2}[/tex] ) + ( [tex]\frac{1}{2}[/tex] × - 2 × ([tex]\frac{1}{2}[/tex] )² )
= 5 + (- 1 × [tex]\frac{1}{4}[/tex] )
= 5 - [tex]\frac{1}{4}[/tex]
= 4 [tex]\frac{3}{4}[/tex]
= [tex]\frac{19}{4}[/tex]
