Answer:add 6
Step-by-step explanation:
yo have to add 5 then subtract to get answer
Answer:
a₁ = 38
Step-by-step explanation:
Given AP, where:
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<h3>Solution</h3>
aₙ = a₁ + (n-1)d
- a₈ = a₁ + 7d = a₁ + 7*(-2) = a₁ - 14
- a₁₂ = a₁ + 11d = a₁ + 11*(-2) = a₁ - 22
8a₈ = 12a₁₂
- 8(a₁ - 14) = 12(a₁ - 22)
- 2(a₁ - 14) = 3(a₁ - 22)
- 2a₁ - 28 = 3a₁ - 66
- 3a₁ - 2a₁ = -28 + 66
- a₁ = 38
Answer:
D
Step-by-step explanation:
I am absolutely sure trust me sorry I put C but I mean D
The parabola has 2 x intercepts, so quadratic equations has 2 real roots (-6), and 3
we can write (x+6)(x-3)=0 , x²+6x-3x-18=0, y=x²+3x-18
check y int =-18 on the graph
y=1x²+3x-18