The accompanying data file contains monthly observations for 5 years. Click here for the Excel Data File a. Calculate the 12-month centered moving average. (Do not round intermediate calculations. Round your answers to 2 decimal places.) b. Calculate the ratio-to-moving average. (Do not round intermediate calculations. Round your answers to 2 decimal places.) c-1. Calculate the seasonal indices for April and November. (Do not round intermediate calculations. Round your answers to 4 decimal places.) c-2. Interpret the seasonal index for April. (Do not round intermediate calculations. Round your answer to 2 decimal places.) c-3. Interpret the seasonal index for November. (Do not round intermediate calculations. Round your answer to 2 decimal places.)

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step-by-step explanation:

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

24

step-by-step explanation: