Answer:
Sirius will be 20 years old and his father will be 40 years old. ratio form: 20:40
Step-by-step explanation:
hope this helps
How is this problem laid out
Financial gain,beneficial, or useful
Answer:
Step-by-step explanation:
Let the equation of the cosine function is,
y = Acos(Bx)
From the graph attached,
A = Amplitude = 
= 1
B = 
B = 
B = 
B = 4
Therefore, equation of the cosine wave given in the graph will be,
y = 1.Cos(4x)
y = Cos(4x)
Answer
Speed depends on the amount of force you put into it... it the force is the same on the each surface then it will depend on the roughness of the surface as in friction