If f'(x) = (2–2x)e^(1-x) which of the following statements is true about the graph of f(x)? Select one:
O a. f(x) is increasing and concave down on
(2,5)
O b. f(x) is decreasing on and concave down on (0,2)
O c. f(x) is decreasing and concave up on (0,2)
O d. f(x) is decreasing and concave up on (2,5)
Check

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

add 5 subtract 1

step-by-step explanation:

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong