100 points Charlie bikes 9 miles every day.

Days (d)
1
2
3
4
5
Miles (m)
9
18
27
36
45

Which equation models the situation?
9 = dm
d = 9m
9d = m
d = 9 + m

9d=m

Step-by-step explanation:

the slope is 9 and miles is 9 times so it must be 9d=m

m = 9d

Step-by-step explanation:

We can find the slope by taking two points

(1,9) and (2,18)

and using

m =(y2-y1)/(x2-x1)

   =(18-9)/(2-1)

   =9/1

The equation for a line

y= mx+b where m is the slope and b is the y intercept

y = 9x+b

Substitute in a point to determine b

9 = 9(1)+b

9=9+b

b=0

y= 9x

Changing the letters

m = 9d

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.