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mojhsa [17]
3 years ago
9

During a 4-hour drive a trucker driver traveled at the rate of 40 miles per hour for the first hour and 70 miles per hour for th

e following 3 hours. Which is closest to the average rate the truck driver traveled durind these 4 hours.
Mathematics
1 answer:
elixir [45]3 years ago
8 0
First plus the speed than divide it with 4 you will get 27.5
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Find the linear approximation of the function f(x, y, z) = x2 + y2 + z2 at (4, 4, 7) and use it to approximate the number 4.022
miss Akunina [59]

Answer:

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Step-by-step explanation:

L\left( x \right) = f\left( a \right) + f'\left( a \right)\left( {x - a} \right)

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Therefore:

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Using the above:

f(4.02, 3.99, 6.97) =81+ 8(4.02 - 4) + 8 (3.99 - 4) +14(6.97-7)=80.66.

The approximation of  4.02^2 + 3.99^2 + 6.97^2 is 80.66000.

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3 years ago
The 8 has a value of 8 x ?
kobusy [5.1K]
Im confused on what ur asking but maybe it’s 8
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3 years ago
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