In the given question , we have a function given , which is
[tex] y= 13(0.5^x) [/tex]
And we need to find the value of y when x=5.
So we substitute 5 for x and solve for y, that is
[tex] y=13(0.5^5) = 0.40625 [/tex]
And on rounding to the nearest tenths, we will get
[tex] y=0.4 [/tex]
So when x=5, y=0.4
