A=4, B=5, C=1 and D=2 if you dont have more information of course.
For question 6, recall that a sinusoidal function is of the form
A*sin(ω*t + φ)
where A is the amplitude, ω the angular frequency (in units of radians/second), and φ the phase (in radians). The amplitude is the magnitude of the peaks and troughs, the angular frequency inversely proportional to the period (ω = 2*π/T - the 2*π being a normalizing factor), and the phase a value between 0 and 2*π that "shifts" the graph of the function accordingly.
For question 7, you are being asked to find the composite function obtained by applying g to f, which would be . The domain would be the values for which this function is defined, which, assuming it to be a subset of the real numbers, would be the interval (-∞, 3] (as the square root of a negative number is an imaginary number.
Answer:
The average number of Tv's sold was higher at store A than at store B
Step-by-step explanation:
You don't have to solve anything. They already gave you the mean/average. They just want to know who sold the most, so in this case you would just see who has the higher number, and see what answer matches.