Choose the function whose graph is given by:

using a graph tool

I proceed to graph each case

case a)

see the attached figure N 1

case b)

see the attached figure N 2

case c)

see the attached figure N 3

case d)

see the attached figure N 4

therefore

the answer is the option A

The period of the function is . From the graph you can see that period of given function is (you can see that at x=0, y=1 and next time y=1 when x=4π ).

Then 

.

For the function becomes .

correct choice is A.

use formula for the circle a=3.14

step-by-step explanation:

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7