Step-by-step explanation:
7×4=28. 3×14=42. the area is 70. 28+42=70. my guess
(x+2)=24. mult. both sides by 4
x=22 sub. 2 from both sides
Answer:
an = 5 + 2n
Step-by-step explanation:
Each time it increases by the same amount (2), so this is an arithmetic sequence:
an = a₁ + d (n - 1)
Given a₁ = 7 and d = 2:
an = 7 + 2 (n - 1)
an = 7 + 2n - 2
an = 5 + 2n
Check our answer:
n=1: a₁ = 5 + 2(1) = 7
n=2: a₂ = 5 + 2(2) = 9
n=3: a₃ = 5 + 2(3) = 11
n=4: a₄ = 5 + 2(4) = 13
Answer:
Step-by-step explanation:
Descended feet:
Ascended feet:
Total elevation: