It’s true!! Hope this helped!!!!
        
             
        
        
        
Answer:
A linear formula for S as a function of D is S=17D+1534
Step-by-step explanation:
We are supposed to find a linear formula for S as a function of D.
Equation of line : y = mx+c
We are given that At the surface, the speed of sound is 1534 meters per second. 
c = 1534
We are given that for each increase in depth by 1 km, the speed increases by 17 m/s
So, Slope = m = 17 
Substitute the values in equation
y=17x+1534
x denotes depth
y denotes speed 
We are given that Use D for depth and S for the speed of sound 
So, S=17D+1534
Hence a linear formula for S as a function of D is S=17D+1534
 
        
             
        
        
        
the  square root is 8.246211251
 
        
             
        
        
        
16.5 because it would 165 divided by 10, so if you were to round it’s 17 because you can’t really get half a person.
        
             
        
        
        
Answer:
Yes, the total cost of Lacey lesson is a split function of hours scheduled
Step-by-step explanation:
The amount Lacey pays for each hour of golf = $15
The amount Lacey pays for equipment rental = $10
The amount Lacy pays for equipment rental for a 3 hours long lesson = $5
Therefore, we have
Let C represent the total cost of Lacey lesson and let t represent the number of hours, we have;
C = $10 + t × $15 for 0 ≤ t ≤ 3
C = $5 + t × $15 for t > 3
Therefore, the total cost of Lacey lesson is a split function of hours scheduled