Answer:
do you have any other info
Step-by-step explanation:
 
        
             
        
        
        
3 laps in 2.5 minutes
1 lap = 2.5/3  minute
20 laps =   (2.5/3)*20 = 16.67
20 laps ≈ 16.67 minutes 
        
             
        
        
        
Answer:
 4 sin (2x - 4).
Step-by-step explanation:
The amplitude of  sin x = 1 so our curve with amplitude 4 will have 4 sin x as part of the general form. To alter the period from 2pi to pi we multiply the x by 2, giving 4 sin 2x, Finally to get a phase shift of 2 to the right, we replace the x by x - 2.
Our formula is  4 sin (2(x - 2))
= 4 sin (2x - 4).
 
        
             
        
        
        
Answer:$164.35
Step-by-step explanation:
 You just multiply 19 × 8.65
 
        
             
        
        
        
Answer: 153
Step-by-step explanation:
area of rectangle= 16 x 3= 48
area of trapezium= 1/2(a+b)h
=1/2(16+5)x 10
=105
105+48= <u>153 in^2</u>