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Hitman42 [59]
3 years ago
6

What is the antiderivative of 3x/((x-1)^2)

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
6 0

Answer:

3 ln(x − 1) − 3/(x − 1) + C

Step-by-step explanation:

∫ 3x / (x − 1)² dx

3 ∫ x / (x − 1)² dx

If u = x − 1, then x = u + 1, and du = dx.

3 ∫ (u + 1) / u² du

3 ∫ (1/u + 1/u²) du

3 (ln u − 1/u + C)

3 ln u − 3/u + C

Substitute back:

3 ln(x − 1) − 3/(x − 1) + C

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Lines l and k are parallel to each other. mA=120 degrees. and mC=80 degrees. What is the number of degrees in mB??
djverab [1.8K]

Answer:

45

Step-by-step explanation:

6 0
3 years ago
5+9(m+5)+8 I dont understand the question may you guys explain
viva [34]

Answer:

Simplify

Step-by-step explanation:

You have to simplify the question:

= 5+9m+45+8

= 50+9m+8

= 58+9m

5 0
2 years ago
Read 2 more answers
Can someone help with this question
nevsk [136]

Answer:

It should I only looked at the first few columns and the matched up

Step-by-step explanation:

5 0
3 years ago
Please help me with this question!
gavmur [86]
First off, let's convert the percentages to decimal format, so our 77% turns to 77/100 or 0.77, and our 55% turns to 55/100 or 0.55 and so on

now, the sum of both salines, must add up to the 77% mixture, let's say is "y"
so, 11 + 4 = y, and whatever the concentration level is, must also sum up to the mixture's concentration of 77%

anyway   thus

\bf \begin{array}{lccclll}
&amount&concentration&
\begin{array}{llll}
concentrated\\
amount
\end{array}\\
&-----&-------&-------\\
\textit{first sol'n}&11&x&11x\\
\textit{second sol'n}&4&0.55&2.20\\
------&-----&-------&-------\\
mixture&y&0.77&0.77y
\end{array}\\\\
-------------------------------\\\\
\begin{cases}
11+4=y\implies 15=\boxed{y}\\
11x+2.2=0.77y\\
----------\\
11x+2.2=0.77\cdot \boxed{15}
\end{cases}

solve for "x"
6 0
3 years ago
What is the radius of the circle given by the equation below? x2 + 14x + y2 - 14y = -73
PolarNik [594]

Answer:

5

Step-by-step explanation:   5/13  8 48

graph the function, center the center of the circle find the difference between the center and the circle

center at (-7, 7)

sorry I don't know how to find it mathematically.  I'll try to figure out later, if you need an mathematically solution.  

8 0
2 years ago
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