upper bound value

[green bramble]

3 marks

[high nacelle]

if a = 7.5

it would be 7.45<x<7.55

the highest it could be would be 7.55

so we will sub 7.55 in the equation

3.42 being rounded to 2 do means that it would lie around 3.415 and 3.425

higher end is 3.425 so b is 3.425

repeat the same method to find f. whatever decimal you get for X you find the bound and choose the upper bound lmk if you need more help

[green bramble]

= 2(7.55) - 3.425 / 2
= 15.1 - 3.425 / 2
= 15.1 - 1.7125
= 13.3875

is this correct? so would it be 13.4? idk if im correct

[high nacelle]

I got 13.3875

I’m assuming it would just be 13.3875 considering we got the upper bound values for each individual value

if they wanted us to find bounds for 13.3875 they’d probably say to like the nearest cm or decimal place like they said on the rest

[green bramble]

wait so what do put as answer

[high nacelle]

13.3875

Wait a minute

it’s (15.1-3.425)/2

[high nacelle]

You did the right method just that you divided 3,4 by 2 it should be you subtract the 15 by 3 first to get 12 and then divide by 2 to get 6

answer is like 5. Something let me check

5.83

[green bramble]

this is the answer