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irina1246 [14]
3 years ago
6

Please help me with this!!

Mathematics
1 answer:
lidiya [134]3 years ago
7 0

Answer:

5   3

8+ 4= 1  3

            8

2.

1/6

= =8 1/4

Step-by-step explanation:

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Round off 17.2 to one significant figure
OLga [1]
When rounding off the rule is you round off to the nearest 5.
17.2 would then be rounded of to 17. should it have been 17.5 you would then round up to the next 5 which would be 18
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a shark can swim at an average speed of 25 miles per hour. at this rate, how far can a shark swim in 2.4 hours? use r = d/t
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3 years ago
For a given data group, simple exponential smoothing is being used to forecast demand. The forecast of a given period is 110, wh
motikmotik

Answer:

The smoothing constant alpha is 0.20 (Option a)

Step-by-step explanation:

To solve this problem, first we write the succession of the simple exponential smoothing:

s_t=\alpha x_t+(1-\alpha)s_{t-1}

Where s(t) is the forecast for period t, s(t-1) is the forecast for period (t-1), xt is the real demand for period t, and alpha is the smoothing constant.

All but the alpha constant are known

s(t)=109.2

s(t-2)=110

xt=110-4=106

Then, we can calculate alpha as:

s_t=\alpha x_t+(1-\alpha)s_{t-1}\\\\109.2=\alpha*106+(1-\alpha)*110\\\\109.2=(106-110)\alpha+110\\\\(110-106)\alpha=110-109.2=0.8\\\\4\alpha=0.8\\\\\alpha=0.2

7 0
4 years ago
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What's 4/8 equal to?
Brut [27]
1/2
2/4
8/16
12/24
etc.etc.
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3 years ago
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