I think it is 142cm^2. What I did to work this out is, 236 divided by 5= 47.2 ( to get the surface area of a 1cm cylinder) then multiply by 3 = 141.6 then round
Answer:
8.17307692308
Step-by-step explanation:
replace 15 for t in the equation
V915) = 20 + 7 cos(15) = 26.76148078 feet per second
26.76148078 x 15 = 401.4222118 feet
round off to 401.42 feet
