Answer:
- 3, - 2, - 1 and 6
Step-by-step explanation:
To find the first 3 terms, substitute n = 1, 2, 3 into the nth term rule
a₁ = 1 - 4 = - 3
a₂ = 2 - 4 = - 2
a₃ = 3 - 4 = - 1
The first 3 terms are - 3, - 2, - 1
similarly substitute n = 10 into the rule for 10th term
a₁₀ = 10 - 4 = 6
Answer:
Step-by-step explanation:
5/6 - (2/5 + 1/3)
25/30 - (12/30 + 10/30)
25/30 - 22/30 = 3/30 = 1/10
answer is b
Answer:
Step-by-step explanation:
a = 4
b= 1
c = 2
d =2
Leftside of equation:
No. of H molecules = 4
No. of Cl molecules = 4
No. of O molecules = 4 *4 + 8 =16 + 8 = 24
No. of P molecules = 2
Right side of equation:
No. of H molecules = 4
No. of Cl molecules = 4
No. of O molecules = 2*5 + 2 *7 = 10 + 14 = 24
No. of P molecules = 2
