Area=πr² where r=d/2
r=8mm
Area=πx8x8
=64π mm²
I think you omitted the π symbol in your choices so the answer is not in there but should be 64π mm²
Answer:
The forecast for November is 235 if August's forecast was 145.
Step-by-step explanation:
The formula for calculating forecast using exponential smoothing is:
Where Ft = New month forecast
Ft-1 = Previous month forecast
At-1 = Previous month actual value
α = smoothing constant
We are given F₈ = 145 (forecast for August), A₈ = 200 (Actual Value for August), α = 2, and we need to compute the forecast for November. So, We will first calculate the forecast for September then October and then November, step-by-step.
So, forecast for September is:
F₉ = F₈ + α (A₈ - F₈)
= 145 + 2*(200-145)
= 145 + 2*55
F₉ = 255
Then, forecast for October is:
F₁₀ = F₉ + α (A₉ - F₉)
= 255 + 2*(220-255)
= 255 + 2*(-35)
F₁₀ = 185
The forecast for November is:
F₁₁ = F₁₀ + α (A₁₀ - F₁₀)
= 185 + 2*(210 - 185)
F₁₁ = 235
Rewrite it as
3r-1=8
3r=8+1
3r=9
R= 3
1/2(x - 3) = 2/3(x - 8)
<em><u>Distributive property on both sides.</u></em>
0.5x - 1.5 = 0.7x -5.3
<em><u>Add 5.3 to both sides.</u></em>
0.5x + 3.8 = 0.7x
<em><u>Subtract 0.5x from both sides.</u></em>
3.8 = 0.2x
<em><u>Multiply both sides by 5.</u></em>
x = 19 (This is your answer.)
Let me know if you have any other questions. :)
The coefficient is what the variable is attached to so it is 10.
Have a good day:)