1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nevsk [136]
3 years ago
14

HELPPPPPPPPPPPPPPPPPPP!!!

Mathematics
1 answer:
zhuklara [117]3 years ago
5 0
The answer is B) divide 124 by 275
You might be interested in
Find integra of xlnxdx
Mademuasel [1]

Answer:

\dfrac{1}{2}x^2\ln x - \dfrac{1}{4}x^2+\text{C}

Step-by-step explanation:

<u>Fundamental Theorem of Calculus</u>

\displaystyle \int \text{f}(x)\:\text{d}x=\text{F}(x)+\text{C} \iff \text{f}(x)=\dfrac{\text{d}}{\text{d}x}(\text{F}(x))

If differentiating takes you from one function to another, then integrating the second function will take you back to the first with a <u>constant of integration</u>.

\boxed{\begin{minipage}{4 cm}\underline{Integrating $x^n$}\\\\$\displaystyle \int x^n\:\text{d}x=\dfrac{x^{n+1}}{n+1}+\text{C}$\end{minipage}}

Increase the power by 1, then divide by the new power.

Given <u>indefinite integral</u>:

\displaystyle \int x \ln x \:\: \text{d}x

To integrate the given integral, use Integration by Parts:

\boxed{\begin{minipage}{5 cm}\underline{Integration by parts} \\\\$\displaystyle \int u \dfrac{\text{d}v}{\text{d}x}\:\text{d}x=uv-\int v\: \dfrac{\text{d}u}{\text{d}x}\:\text{d}x$ \\ \end{minipage}}

\text{Let }u=\ln x \implies \dfrac{\text{d}u}{\text{d}x}=\dfrac{1}{x}

\text{Let }\dfrac{\text{d}v}{\text{d}x}=x \implies v=\dfrac{1}{2}x^2

Therefore:

\begin{aligned}\displaystyle \int u \dfrac{dv}{dx}\:dx & =uv-\int v\: \dfrac{du}{dx}\:dx\\\\\implies \displaystyle \int x \ln x\:\:\text{d}x & = \ln x \cdot \dfrac{1}{2}x^2-\int \dfrac{1}{2}x^2 \cdot \dfrac{1}{x}\:\:dx\\\\& = \dfrac{1}{2}x^2\ln x -\int \dfrac{1}{2}x\:\:dx\\\\& = \dfrac{1}{2}x^2\ln x - \dfrac{1}{4}x^2+\text{C}\end{aligned}

Learn more about integration here:

brainly.com/question/27805589

brainly.com/question/27983581

brainly.com/question/27759474

5 0
2 years ago
Each side of a cube 2.5 cm long. what is the volume?
Firdavs [7]

V ≈ 15.63cm^3

volume of a cube = side × side × side = units^3

Volume = 2.5*2.5*2.5 = 15.63^3

<em>Hoped this helped!</em>

7 0
3 years ago
Read 2 more answers
If BD and EG are parallel lines and mBCF = 50°, what is mEFH?<br> Look at this diagram:
Burka [1]
It’s hard to tell due to no labels, but these are your angles due to the equal angles theorem and a few other theorems. Hopefully with this image you can hopefully find your answer. You may need to add angles together depending on what you are looking for. And possible even figure out what angle measure would make a (180 degree) triangle.
Hope this helped

4 0
3 years ago
What is one effect of World Bank loans to developing countries?
matrenka [14]
One example is they help them develop projects
7 0
2 years ago
Martina drove 385 miles in 7 hours. at the same rate, how long would it take her to drive 495 miles?
Anarel [89]

385/7 = 495/x

Answer: 9 hours

5 0
3 years ago
Read 2 more answers
Other questions:
  • 1,534 divided by 26 =?
    12·2 answers
  • john read the first 114 pages of a novel which is 3 pages less than 1/3 of the novel. write the equation
    15·1 answer
  • Anyone know this? Please help
    7·2 answers
  • I don't know the answer
    11·1 answer
  • can you help me understand this?  In the number 7,725, which places contain digits where one digit is ten times as great as the
    7·2 answers
  • Plz HELP BRAINLIEST IF CORRECT THANKS
    8·1 answer
  • Calculate the areas of these rectangles.
    13·1 answer
  • What's the distance of (-2, 0), (3, -5) plz help thank you
    13·2 answers
  • Just a little help for Brainliest
    8·1 answer
  • Important, help asap
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!