Answer:
Answer:Step-by-step explanation:Total marble = 4+6+7 = 17Number of green = 7Prob(1st green) = 7/17Now their are 6 green left and 16 marbleProb(2nd green) = 6/16 = 3/8Now their are 5 green left and 15 marbleProb(3rd green) = 5/15 = 1/3Prob(1st and 2nd and 3rd green) will be = 7/17 × 3/8 × 1/3= 7/(17×8)= 7/136.
Step-by-step explanation:
Answer:

Step-by-step explanation:
(x - 1) ×
( cancel the factor (x - 1) on numerator and denominator
= 1
[ In the same way 2 ×
= 1 ]
The required rational expression is 
Answer:
C
Step-by-step explanation:
its the same problem, it's just swapped.
example:
(2•6)+2 = 14
2+(2•6)= 14
Step-by-step explanation:
Linear pairs = 180°!!!!!
- 1st angle is 2[x]-39 2nd angle is just x
- soooo add the x. 3x-39=180
- 3x=141 x=47
X is just the second angle!!!!!
lol. i toonk geo last year and i cant believe i still remember all this hopefully i got it right!