Answer:
X = 28
Step-by-step explanation:
Answer:
8.1061
8.209
8.26
8.6
Step-by-step explanation:
1. 4.22
2. 3.11
3. 2.12
4. 1.27
5. 7.2
6. 2.61
7. 2.57
8. 2.5
9. 4.13
10. 0.83
A₁ = -5x-8; a₂ = -x-14; a₇=?
d = a₂ - a₁
= x-14 - (-5x-8)
= -x - 14 + 5x + 8
= 4x-6
a(n) = a₁ + (n-1)d
a₇ = -5x-8 + (7-1)(4x-6)
= -5x-8 + 6(4x-6)
= -5x - 8 + 24x - 36
= 19x - 44