Angie is working on a project for her history class. The first half of the project took her 7/12 of an hour. The second half of the project took her 13/18 of an hour. What is the total amount of hours she spent working on the project?

Select one:

A. 1/18

B. 2/3

C. 1 1/9

D. 1 11/36

It would be C Because it is

The answer is D since 7+13 is and 12+18 is 36 and the least common denominator is 36 which equals 47/36 if you simplify it. The answer will be 1 11/36

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.