At n = 2
a₂ = (-1)² + 3a₂₋₁ + 2
a₂ = 1 + 3a₁ + 2
a₂ = 1 + (3)(5) + 2
a₂ = 18
At n = 3
a₃ = (-1)³ + 3a₃₋₁ + 2
a₃ = -1 + 3a₂ + 2
a₃ = -1 + (3)(18) + 2
a₃ = 55
At n = 4
a₄ = (-1)⁴ + 3a₄₋₁ + 2
a₄ = 1 + 3a₃ + 2
a₄ = 1 + (3)(55) + 2
a₄ = 168
The first four terms are 5, 18, 55, 168
The yearly increase in a child’s height
the length of a paper clip
Answer:
X= 35/6
Y= -14/3
Step-by-step explanation:
To solve for X:
Replace Y by 0:
12y=70
X=35/6
To solve for Y:
Replace X by 0:
-15y=70
Y= -14/3
Answer:
-5
Step-by-step explanation:
You have to subtract 3 and 7 which gives you -4 but since it's absolute value it becomes positive 4. The 9 stays as a positive 9. Then, you subtract 4 and 9 which gives you -5.