Answer:
13.66
Step-by-step explanation:
In the picture above
Answer:
B. 7y - 15
Step-by-step explanation:
10y - 3(y+5)
= 10y -3y - 15
= 7y -15
The equation for the sin function is: Asin(BX-C),
A is the amplitude.
The period is: 2pi/B
The phase shift is: C/B
So, if we know the amplitude A, the period and the shift, we can calculate B from the period: B=2pi/period and we can in the next step calculate C= B*phase shift.