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
IRISSAK [1]
3 years ago
14

Need help fast will give brainliest!!!!!

Mathematics
1 answer:
Fofino [41]3 years ago
7 0

Answer:

C and E i think

Step-by-step explanation:

You might be interested in
I do not know how to this question and i need help please
maxonik [38]

Answer:

---

Step-by-step explanation:

I know this probably won't help but, your finding rate, To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

6 0
3 years ago
To join the game club, you must pay $7 a month plus
ivanzaharov [21]

Answer: Total cost/month = 7 + 3x

Step-by-step explanation:

This is only the total cost per month that is why it is only 7 and 3x since the number of downloaded games is not given.

I'm not sure about my answer but I hope that it helps.

8 0
2 years ago
∫(cosx) / (sin²x) dx
kirza4 [7]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2822772

_______________


Evaluate the indefinite integral:

\mathsf{\displaystyle\int\! \frac{cos\,x}{sin^2\,x}\,dx}\\\\\\
=\mathsf{\displaystyle\int\! \frac{1}{(sin\,x)^2}\cdot cos\,x\,dx\qquad\quad(i)}


Make the following substitution:

\mathsf{sin\,x=u\quad\Rightarrow\quad cos\,x\,dx=du}


and then, the integral (i) becomes

=\mathsf{\displaystyle\int\! \frac{1}{u^2}\,du}\\\\\\
=\mathsf{\displaystyle\int\! u^{-2}\,du}


Integrate it by applying the power rule:

\mathsf{=\dfrac{u^{-2+1}}{-2+1}+C}\\\\\\
\mathsf{=\dfrac{u^{-1}}{-1}+C}\\\\\\
\mathsf{=-\,\dfrac{1}{u}+C}


Now, substitute back for u = sin x, so the result is given in terms of x:

\mathsf{=-\,\dfrac{1}{sin\,x}+C}\\\\\\
\mathsf{=-\,csc\,x+C}


\therefore~~\boxed{\begin{array}{c}\mathsf{\displaystyle\int\! \frac{cos\,x}{sin^2\,x}\,dx=-\,csc\,x+C} \end{array}}\qquad\quad\checkmark


I hope this helps. =)


Tags:  <em>indefinite integral substitution trigonometric trig function sine cosine cosecant sin cos csc differential integral calculus</em>

5 0
3 years ago
Show all work and reasoning
Natalija [7]
Split up the interval [2, 5] into n equally spaced subintervals, then consider the value of f(x) at the right endpoint of each subinterval.

The length of the interval is 5-2=3, so the length of each subinterval would be \dfrac3n. This means the first rectangle's height would be taken to be x^2 when x=2+\dfrac3n, so that the height is \left(2+\dfrac3n\right)^2, and its base would have length \dfrac{3k}n. So the area under x^2 over the first subinterval is \left(2+\dfrac3n\right)^2\dfrac3n.

Continuing in this fashion, the area under x^2 over the kth subinterval is approximated by \left(2+\dfrac{3k}n\right)^2\dfrac{3k}n, and so the Riemann approximation to the definite integral is

\displaystyle\sum_{k=1}^n\left(2+\frac{3k}n\right)^2\frac{3k}n

and its value is given exactly by taking n\to\infty. So the answer is D (and the value of the integral is exactly 39).
8 0
3 years ago
Find the sum (2x−6)+4(x−3)
Degger [83]

Answer: x=-2


Step-by-step explanation: First we can multiply 4 times anything in the parantheses to get rid of it.

(2x-6)+4(x-3)

(2x-6)+4x-12

Then we combine like terms.

(2x-6)+4x-12

6x-6-12

6x-18

Finally we divide both sides 6.

6x-18

6x/6-18/6

x=-2

The final answer is x=-2

Hope this helps!




6 0
3 years ago
Other questions:
  • Multiply x^1/3 • x^3/7
    10·1 answer
  • Rewrite the function by completing the square. h(x)= 4 x^{2} -36 x +81
    14·1 answer
  • What is the length of side BC in the right triangle
    13·1 answer
  • If 7 L of a solvent costs $73 per liter, then the value of the 7 L of solvent is
    15·1 answer
  • Which situation is most likely to have a constant rate of change?
    7·1 answer
  • I NEED HELP ASAP PLS DO STEP BY STEP WILL GIVE BRAINLIEST!!!!!!!!!!!!!
    9·1 answer
  • Please help!! I’ve been stuck on 3 &amp; 4!
    13·1 answer
  • The number of students treated per month has been recorded for the last 60 months. Which between 100 and 200 students were treat
    8·1 answer
  • Find the value of x in the triangle. A triangle is shown with interior angles labeled 48 degrees, 85 degrees, and x. A. 27° B. 4
    8·2 answers
  • Solve for x to the nearest tenth
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!