What a the question I’m confused!!!
5(n+2)=8(n-17)
This one was tricky, just read the wording.
Step-by-step explanation:
2.
(2 + √3)(2 - √3)
- x² - y² = (x + y)(x - y)
- x = 2, y= √3
- x² = 2² = 4
- y² = √3² = 3
- (2 + √3)(2 - √3) = 4 - 3 = 1
3.
(6 + √5)/(6 - √5)
- Multiply both numerator and denominator by (6 + √5) to simplify
- (6 - √5) ((6 + √5) = 6² - √5² = 36 - 5 = 31
- (6 + √5)/(6 +√5) = 6² + 2*6*√5 + √5² = 36 + 12√5 + 5 = 41 + 12√5
- (6 + √5)/(6 - √5) = (41 + 12√5)/31
10 matches.
Player A, B, C, D, E
A-B, A-C, A-D, A-E
B-C, B-D, B-E
C-D, C-E
D-E
This is one match each per person.
A-B in first match. So if you go to B bracket. He can't play A again, so A is not included. And naturally he cannot play himself. B-B cannot happen. So you start as B-C.
Answer:
1 hen lays 1 egg in 3 days
Basically, in 3 days 1 hen lays 1 egg
1 hen lays 4 eggs in 12 days
Therefore, 3 hens lay 12 eggs in 12 days ******************
1 hen lays 3 eggs in 9 days ******************
Step-by-step explanation:
