If three less than 'n' equals 2, 'n'=5
3+2=5
Answer:
Y = 4
Step-by-step explanation:
<h2>
<em><u>Y </u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>3</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>9</u></em></h2><h2>
<em><u>Y </u></em><em><u>=</u></em><em><u> </u></em><em><u>4</u></em></h2><h2 />
<h2>
<em><u>that's </u></em><em><u>all</u></em></h2>
X y
1 = 4
2 = 8
3 = 12
4 = 16
X = pounds
y = price
Step-by-step explanation:
∑⁴ₙ₌₁ -144 (½)ⁿ⁻¹
This is a finite geometric series with n = 4, a₁ = -144, and r = ½.
S = a₁ (1 − rⁿ) / (1 − r)
S = -144 (1 − (½)⁴) / (1 − ½)
S = -270
If you wanted to find the infinite sum (n = ∞):
S = a₁ / (1 − r)
S = -144 / (1 − ½)
S = -288
