What is the amplitude and period of f(t)=-cos t

c. amplitude: 1; period:

Step-by-step explanation:

The given function is

This function is of the form;

where is the amplitude.

When we compare to , we have

, therefore the amplitude of the given cosine function is

The period is given by;

Since B=1, the period is

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153

i believe it is b and c. (side note, i got the same computer from k-12 lol i’m in 8th grade and this is my first year, will it get

step-by-step explanation: