21. Approximately how long is a millionth, defined to be one-thousand of a month (a) 20 secs (b) 70 secs (c) 8 mins (d) 40 mins (e) 3 hours

24. In this expression
☐ 1/3 ☐ 1/4 ☐ 1/5 ☐ 1/6 ☐ 1/7
We place either a plus sign or a minus sign in each box so that the result is the smallest positive number possible

(a) between 0 and 1/100 (b) between 1/100 and 1/50
(c) between 1/50 and 1/20
(d) between 1/20 and 1/10
(e) between 1/10 and 1

option (b) is correct answer.

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

answer: i wpould go with c

step-by-step explanation: