it is a. Yes it can, because −2.5 lies to the left of −0.5. plz mark me as brainiest and tell me if I am wrong
Solution :
The formula for the linearization of a function
at a point
= a is given as

Assuming the time is t and the distance travelled is
, that makes the speed as
.
So substituting them in the linearization formula,
A. At t = 7 minutes
f(7) = 2.5 km
f'(7) = 0.5 kpm
∴ 



B. At t = 18 minutes
f(18) = 14.8 km
f'(18) = 0.8 kpm
∴ 



C. Substituting the value of t as 14 in both the linearization to determine the position at 14 minutes, we get

= 7 - 1
= 6 km

= 11.2 + 0.4
= 11.6 km
D. According to the linearization at 7, the distance travelled between the 7 minutes and 14 minutes is = 6 km - 2.5 km
= 3.5 km
And between the 14 minutes and 18 minutes is = 14.8 km - 6 km
= 8.8 km
This is an average speed of 0.5 kpm in the first interval and an average speed of 2.2 kpm.
Now, according to the linearization of 18, the distance travelled between the 7 minutes and the 14 minutes is = 11.6 km - 2.5 km
= 9.1 km
And between 14 minutes and 18 minutes is = 14.8 km - 11.6 km
= 3.2 km
This gives an average speed of 1.3 kpm in the first interval and 0.8 kpm in the second interval.
Therefore, the second approximation is the better one since the average speed are closer to the actual readings in the second linearization.
Answer:
8800m
Step-by-step explanation:
Answer: the answer is A i took the testssssssssssssssssssssssssss
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Step-by-step explanation:
Answer:
x = 16
Step-by-step explanation:
10x = 105 - (12x - 247) //Distribute - sign
10x = 105 - 12x + 247 // Add 12x & combine like terms
10x + 12x = 352
22x = 352 //Divide 22
x = 352/22
x = 16