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mr Goodwill [35]
3 years ago
14

Help!! I spent hours trying to figure this out!! Answer was incorrect. And it has to be written in equation or fraction format.

No decimals.
Here’s my work:
Using a substitution
u = 4 * x^(-2)
du = -8 * x^(-3) * dx
(-1/8) * du = x^(-3) * dx
Now I have:
e^(4x^(-2)) * dx / x^3 =>
e^(u) * (-1/8) * du
Integrate
(-1/8) * e^(u) + C =>
(-1/8) * e^(4x^(-2)) + C
From 4 to 6
(-1/8) * e^(4 * 6^(-2)) + (1/8) * e^(4 * 4^(-2)) =>
(1/8) * (e^(4/16) - e^(4/36)) =>
(1/8) * (e^(1/4) - e^(1/9))

Mathematics
1 answer:
zysi [14]3 years ago
8 0

Answer:

its correct my friend gg i ttok half an hour to do it

Step-by-step explanation:

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Answer:

x+23 = 47

Step-by-step explanation:

Let age of Carlos is x. It is mentioned that the sum of age of Carlos and his mother is 47 years old. Age of Carlos is 23.

We need to find the equation that represents the sum of Carlos' age with his mother.

x+23 = 47 is the required equation.

Also, we can find the age of Carlos as :

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8 0
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Which of the following functions is graphed below?
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Step-by-step explanation:

7 0
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Here are two offers for batteries.
trapecia [35]

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Step-by-step explanation:

Given,

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And

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7 0
3 years ago
The line plot below displays the fraction of incoming calls answered before the second ring by a group of employees. What fracti
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4 0
3 years ago
* please explain work / show it thxsss!!**
serious [3.7K]

Answer:

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C = d * π = 64 * 3.14 = 200.96 (m)

8 0
3 years ago
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