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
Elden [556K]
3 years ago
7

What is k/5.2 + 81.9= 47.2

Mathematics
1 answer:
weqwewe [10]3 years ago
7 0
Solution for k/5.2+81.9=47.2 equation:
<span>k in (-oo:+oo)

k/5.2+81.9 = 47.2 // - 47.2

k/5.2-47.2+81.9 = 0

0.19230769*k-47.2+81.9 = 0 // - 81.9-47.2

0.19230769*k = -(81.9-47.2) // : 0.19230769

k = (-(81.9-47.2))/0.19230769

k = 5.20000006*(47.2-81.9)

k = 5.20000006*(47.2-81.9)

Always Practice, It makes Perfect! Anyways, I hope I helped... It would be nice if you can answer mine too, But you dont have to! ;) </span><span>brainly.com/question/253764
</span>
You might be interested in
If a = i - j , b = i+j+k and c be a vector such that a x c + b = o and a.c= 4, then IcI2 is equal to​
scZoUnD [109]
It is correct because it is
6 0
3 years ago
Read 2 more answers
If x^2y-3x=y^3-3, then at the point (-1,2), (dy/dx)?
zavuch27 [327]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2866883

_______________


          dy
Find  ——  for an implicit function:
          dx


x²y – 3x = y³ – 3


First, differentiate implicitly both sides with respect to x. Keep in mind that y is not just a variable, but it is also a function of x, so you have to use the chain rule there:

\mathsf{\dfrac{d}{dx}(x^2 y-3x)=\dfrac{d}{dx}(y^3-3)}\\\\\\&#10;\mathsf{\dfrac{d}{dx}(x^2 y)-3\,\dfrac{d}{dx}(x)=\dfrac{d}{dx}(y^3)-\dfrac{d}{dx}(3)}


Applying the product rule for the first term at the left-hand side:

\mathsf{\left[\dfrac{d}{dx}(x^2)\cdot y+x^2\cdot \dfrac{d}{dx}(y)\right]-3\cdot 1=3y^2\cdot \dfrac{dy}{dx}-0}\\\\\\&#10;\mathsf{\left[2x\cdot y+x^2\cdot \dfrac{dy}{dx}\right]-3=3y^2\cdot \dfrac{dy}{dx}}


                        dy
Now, isolate  ——  in the equation above:
                        dx

\mathsf{2xy+x^2\cdot \dfrac{dy}{dx}-3=3y^2\cdot \dfrac{dy}{dx}}\\\\\\&#10;\mathsf{2xy+x^2\cdot \dfrac{dy}{dx}-3-3y^2\cdot \dfrac{dy}{dx}=0}\\\\\\&#10;\mathsf{x^2\cdot \dfrac{dy}{dx}-3y^2\cdot \dfrac{dy}{dx}=-\,2xy+3}\\\\\\&#10;\mathsf{(x^2-3y^2)\cdot \dfrac{dy}{dx}=-\,2xy+3}


\mathsf{\dfrac{dy}{dx}=\dfrac{-\,2xy+3}{x^2-3y^2}\qquad\quad for~~x^2-3y^2\ne 0}


Compute the derivative value at the point (– 1, 2):

x = – 1   and   y = 2


\mathsf{\left.\dfrac{dy}{dx}\right|_{(-1,\,2)}=\dfrac{-\,2\cdot (-1)\cdot 2+3}{(-1)^2-3\cdot 2^2}}\\\\\\&#10;\mathsf{\left.\dfrac{dy}{dx}\right|_{(-1,\,2)}=\dfrac{4+3}{1-12}}\\\\\\&#10;\mathsf{\left.\dfrac{dy}{dx}\right|_{(-1,\,2)}=\dfrac{7}{-11}}\\\\\\\\ \therefore~~\mathsf{\left.\dfrac{dy}{dx}\right|_{(-1,\,2)}=-\,\dfrac{7}{11}}\quad\longleftarrow\quad\textsf{this is the answer.}


I hope this helps. =)


Tags:  <em>implicit function derivative implicit differentiation chain product rule differential integral calculus</em>

6 0
3 years ago
The window of a room is 20m long and 14m wide. If the carpenter works to
Gnoma [55]

Answer:

Length =20 m

Breadth =14 m

Perimeter =2(l+b)

2(20+14)=2*34=68 m

Given cost per m =120 rs

Then the total cost =68*120=8160 rs

Step-by-step explanation:

WANNA TALK ON PADLET???

6 0
4 years ago
I will give brainliest please help
Inessa [10]

Answer:

828

Step-by-step explanation:

5 0
4 years ago
John got the follow scores on his tests what is the interquartile range of his scores 78,57,90,60,89,69,95
Aleksandr-060686 [28]
57, 60, 69, 78, 89, 90, 95 (90-60=30) Answer= C. 30
7 0
3 years ago
Other questions:
  • CALCULUS: With what initial velocity much an object be thrown upward (from ground level) to reach the top of the Washington Monu
    12·1 answer
  • Find the volume of a box with length 25 cm, height 25 cm and width 1.0 m.
    12·1 answer
  • Use the direct variation equation. <br> If y=20 when x=-5. Find x when y=-1.
    10·1 answer
  • David and his friends are making lasagna for a school dinner. There will be 400 people at dinner. The recipe for 100 people uses
    15·2 answers
  • Please answer this today
    6·2 answers
  • Direct Variation: If y = 6, when x = -2, find y when x = 18.
    12·1 answer
  • Is that the only ones I used
    8·1 answer
  • Consider the line y=5x-4.
    11·1 answer
  • What is the area of polygon PQRS?
    8·2 answers
  • What are the factors and zeros of the function f(x)=−2x2+7x+15?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!