Simplify quantity 18 x minus 6 over 9 x to the fifth power all over quantity 15 x plus 5 over 21 x squared. (2 points) a 5 x cubed over 14

b 5 x cubed open parentheses 3 x plus 1 close parentheses over 14 open parentheses 3 x minus 1 close parentheses
c 14 over 5 x cubed

d 14 open parentheses 3 x minus 1 close parentheses over 5 x cubed open parentheses 3 x plus 1 close parentheses

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation:

1,589.63 in.^3

step-by-step explanation:

i hope this you : d

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional