A12= 708588
Formula: a1 * r^n-1
a12= -4 * (-3) ^12-1
a12= -4 * (-177147)
a12= 708588
To round 0.472 to the nearest tenth consider the hundredths' value of 0.472, which is 7 and equal or more than 5. Therefore, the tenths value of 0.472 increases by 1 to 5.
So, the answer would be 0.5.
<u>I hope this helped!</u>
Answer:
Step-by-step explanation:
a₁₂ = a₅ + (12-5)d
72 = 23 + 7d
d = 7
a₃ = a₅ + (3-5)d = 23 - 2⋅7 = 9
a₂ = a₃ - d = 9-7 = 2
a₁ = a₂ - d = 2 -7 = -5
I think its the first one but i'm not 100% sure, don't trust me