Take into account, that in general, a cosine function of amplitude A, period T and vertical translation b, can be written as follow:
In the given case, you have:
A = 4
T = 3π/4
b = -3
By replacing you obtain:
Hence, the answer is:
f(x) = 4cos(8/3 x) - 3
Answer:
C.
Step-by-step explanation:
Let be the excedent on annual sales and
the bonus factor, to determine the bonus amount a composition of
is
must be done. That is:
Hence, the right answer is C.
Answer:
Time taken by Franklin to shovel alone is 65.5 minutes.
Step-by-step explanation:
Let the time taken by Franklin to shovel alone = x minutes.
Since, the time taken by Angela to shovel = 180 minutes and the time taken by both = 48 minutes.
Then, we have,
Amount of shoveling done in 1 minute by Angela =
Amount of shoveling done in 1 minute by both =
Amount of shoveling done in 1 minute by Franklin=
So, we have,
i.e.
i.e.
i.e.
i.e.
i.e. x= 65.5 minutes
Thus, the time taken by Franklin to shovel alone is 65.5 minutes.