What is the frequency of the function f(x)? f(x)=3cos(πx)−2

Express the answer in fraction form.

Enter your answer in the box.

The frequency is Hz

Step-by-step explanation:

Sinusoid Function

The cosine and sine functions are generally called sinusoids because of their characteristic oscillatory behavior.

The general cosine function is expressed as

Where A is the amplitude, ω is the angular frequency, Ф is the phase shift and B is the midline or vertical shift.

We are given the function:

The coefficient of x is the angular frequency, thus

Since

Where f is the frequency, then

Simplifying:

The frequency is Hz

hi there!

the answer to this question is d: 35

step-by-step explanation:

5 to the power of 2 is 25

2 multiplied by 5 is 10

then you add the 2 numbers and you get 35

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour