Answer:
3, 7
Step-by-step explanation:
Answer:
Options B and D.
Step-by-step explanation:
The general form of sine function

where, |A| is amplitude,
is period,
is phase shift and D is y-intercept.
The general form of cosine function

where, |A| is amplitude,
is period,
is phase shift and D is y-intercept.
In function, 
Amplitude : 
y-intercept : -1
In function, 
Amplitude : 
y-intercept : -1
In function, 
Amplitude : 
y-intercept : 0
In function, 
Amplitude : 
y-intercept : -1
Therefore, the correct options are B and D.
Answer:
Tip = 2.925 or about 2.93
Meal = 19.50
Total amount paid = 22.425 or about 22.43
Step-by-step explanation:
15% of 19.50 = 2.925
The amount for the meal is already given which is $19.50
<em>Ace </em>
Answer:
7:2
7/2
Step-by-step explanation:
7:2 is also equivalent to 7/2