Hey You!
I am quite sure the answer is: D. Metric.
X=3 because 21 divided by 7 is 3
Answer:
will be 25 easily
Step-by-step explanation:
usually mathmatics answers in the middle are correct
Let's first figure out how much it flies in a hour,
560/5 = 112
8 x 112 = 896
(112 mph)
When using GeoGebra, I'm getting the regression curve to be roughly
h(t) = 1.67*(1.4)^t
I'm not sure how your teacher got 1.64 instead of the 1.67, but it's fairly close. So it seems like choice B is the best answer for the first part.
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Once we know the regression equation, we plug in t = 14 to find that,
h(t) = 1.64*(1.4)^t
h(14) = 1.64*(1.4)^(14)
h(14) = 182.236911939151
h(14) = 182.2
If 14 days have gone by, then we estimate the height is roughly 182.2 inches.
Compared to what the table says, which is 190 inches, we see that we have an underestimate. The error is about 190-182.2 = 7.8 which is under 10.
Answer: Choice C
The model <u>under-predicts</u> the actual height by <u>less than 10 inches</u>