The function, f(t)= 1.2 cos 0.5t, does not have an amplitude and has a period of 4π.

False

Step-by-step explanation:

Given in the question a function,

f(t)=1.2cos0.5t

Standard form of cosine function is

f(t)=acos(bt)

Amplitude is given by = |a|

Period of function is given by = 2π/b

So the amplitude is |1.2| = 1.2

    the period is 2π/0.5 = 4π

False

Step-by-step explanation:

The given function is

This function is of the form:

where A=1.2 and B=0.5

The amplitude of this function is given by;

|A|=|1.2|=1.2

The period of this function is given by;

The correct answer is False

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

5 pm

step-by-step explanation: