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
EleoNora [17]
3 years ago
11

Find the coordinates of the point in the first quadrant at which the tangent line to the curve (x)^3-xy+(y)^3 =0 is parallel to

the x axis.
Mathematics
1 answer:
Oksanka [162]3 years ago
8 0
<span>Differentiate implicitly:
</span>3x^2-y-xy'+3y^2y'=0
<span>
Solve for y
</span>y'(3y^2-x)=y-3x^2&#10;\\&#10;\\y'={y-3x^2\over3y^2-x}

<span>When the tangent is parallel to the x-axis we have y'=0, so we must solve
</span>y'={y-3x^2\over3y^2-x}=0\implies y=3x^2

<span>To find the actual value of x we plug this expression for y into the original equation
</span>x^3-3x^3+27x^6=0&#10;\\&#10;\\x^3(27x^3-2)=0\implies x=\{0,{\sqrt[3]2\over3}\}

<span>Plugging this into the formula for y above gives the points
</span>(0,0)\text{ and }({\sqrt[3]2\over3},{\sqrt[3]4\over3})

<span>which is where our tangent will be parallel to the x-axis.</span>
<span>

</span>
You might be interested in
D) Use your knowledge of scale drawings and image sizes to fill in the missing
astraxan [27]

Answer:

  Your table is filled in below.

Step-by-step explanation:

The scale factor is the ratio of image size to original size. In part (d), the image height is "blocks" while the original height is "feet". So, the units of the scale factor are "blocks/ft".

Sometimes a scale factor has units, like this, and sometimes it is expressed as a pure number. A map scale factor might be the pure number ratio 1 : 62500, or it could also be expressed with units as 1 in : 1 mile.*

__

* actually, these are slightly different scales. 1:62500 is about 0.98643 inches per mile.

7 0
3 years ago
Read 2 more answers
Four subtracted from twice a number is two. what is the number
EastWind [94]

Answer: 3

Step-by-step explanation:

      First, we will write a mathematical equation for the phrase given.

-> Let n be "a number"

             four subtracted from twice a number is two

             four subtracted from twice a number = 2

             (twice a number) - 4 = 2

             2n - 4 = 2

      Now, we will solve this equation by isolating the variable.

             2n - 4 = 2

             2n = 6

             n = 3

<em>Read more about </em><em>algebraic equations </em><em>here:</em>

<em>brainly.com/question/27791850</em>

8 0
2 years ago
What are some HARD math facts that equal 100
Lelu [443]
0.10 *1000 = 100

0.2 * 500 = 100
6 0
3 years ago
Which is longer 3200 hours or 19 weeks
Katarina [22]
The 1 weeks is longer because the hours is like 53 days and the weeks are like 133 days

3 0
3 years ago
Erin is buying a tv with an original price of 650. She receives a 20% discount. How much will Erin pay, before tax, for the TV
r-ruslan [8.4K]

Answer:

$520

Step-by-step explanation:

20%

=0.2

0.2*650

=130

650-130

=520

5 0
3 years ago
Other questions:
  • A coin was tossed 60 times and the coin landed on Heads 35 times. What proportion of the time did the coin land on Heads?
    15·1 answer
  • Please answer these <br><br><br><br> 1-4 <br><br><br> Please answer all of them. THANSK
    11·1 answer
  • Help once again !!!!
    14·2 answers
  • Marissa bought four bottles of water Each bottle of water is 0.95 cents Write an equation with the same product as the total cos
    11·1 answer
  • 1.09 g/mL to lbs/gal
    15·1 answer
  • HELP PLEASE WITH 5 QUESTIONS!!!
    5·1 answer
  • -4/5*3/7* 15/16*-14/9
    14·2 answers
  • What is the value of f(-5) in the function f(x)=6x-3?
    9·2 answers
  • Can somebody help with my 2 way table assignments..? i know some of you will take this as a fre.e points question and i don't re
    13·1 answer
  • What is 23+34-19+84=?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!