We have been given that a cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shift is 9 units down, and the period of the function is 
. The graph of the function does not show a phase shift. We are asked to write the equation of our function.
We know that general form a cosine function is 
, where,
A = Amplitude,
= Period,
c = Horizontal shift,
d = Vertical shift.
The equation of parent cosine function is 
. Since function is reflected about x-axis, so our function will be 
.
Let us find the value of b.
Upon substituting our given values in general cosine function, we will get:
Therefore, our required function would be .
False. A two-column proof is also known as a "Statement-Reason Proof", with the statement column on the left and the reason column on the right.
Answer:
Express s in terms of v and t
s= v/t, multiplying both sides of the equation by t
Express t in terms of v and s
t= s/v ( from s=vt)
Step-by-step explanation:
The total amount of snowfall on the two days combined is 4 3/8 cm
<h3>Addition of fractions </h3>
From the question, we are to determine the amount of snowfall on the two days combined
From the given information,
the amount of snowfall was 1/8 cm on Thursday
The amount of snowfall was 4 1/4 cm on Wednesday
Then,
The total amount of snowfall on the two days combined will be
cm
= 
= 
= 
= 
Hence, the total amount of snowfall on the two days combined is 4 3/8 cm
Learn more on Addition of fractions here: brainly.com/question/78672
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