Answer:
B is the correct answer
a*b/a+b = a^3-3a^2b+3ab^2-b^3/(a-b)(a-b)
= (a-b)^3/(a-b)^2
= (a-b)
Answer:
This is GP with the first term of 512 and common ratio of 1/2
<u>The formula for nth term is:</u>
<u>The number of teams after the 4th round:</u>
- a₄ = 512*(1/2)⁴ = 32 teams
<u>Number of rounds to determine the champion:</u>
- 1 = 512*(1/2)ⁿ
- 2⁰ = 2⁹*2⁻ⁿ
- 0 = 9 - n
- n = 9 rounds
Answer:
4
Step-by-step explanation:
-2/9(2×-9)
-2/9(-18)
(-2×-18)/9
-2×-2
4
Answer:
0.23
Step-by-step explanation:
She bought 108 water bottles and 108 sandwiches
