Answer:
The amplitude of the sinusoidal function is 3
Step-by-step explanation:

This is an incorrect question, the correct question is given below.
Martin is building a model. He cuts two pieces of wood that are each
inches long from a board with a total length of 18 inches. What is the length, in inches, of the remaining part of the board?
Answer : The length of the remaining part of the board is
inches.
Step-by-step explanation :
As we are given that:
Total length of the board = 18 inches
Length of each piece of wood cut from the board =
inches =
inches
Length of 2 pieces of wood cut from the board =
inches
=
inches
Length of the remaining part of the board = Total length of the board - Length of 2 pieces of wood cut from the board
Length of the remaining part of the board =
inches
=
inches
=
inches
=
inches
Therefore, the length of the remaining part of the board is
inches.
1°, because -15° + (2° × 8 hours) = 1°
D 28 miles you want to multiply by 4 so 7x4 =28