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Vadim26 [7]
3 years ago
7

Find y' by implicit differentiation: xy + 2x + 3x^2 = 4

Mathematics
1 answer:
NeX [460]3 years ago
3 0
(xy)' + (2x)' + (3x^2)' = (4)'

y + xy' + 2 + 6x = 0

xy' = -y  -2 -6x

y' = [-y -2 -6x] / x

Now solve y from the original equation and substitue

xy + 2x + 3x^2 = 4 => y = [-2x - 3x^2 + 4] / x

y' =  [(-2x - 3x^2 +4) / x - 2 - 6x ] / x

y' = [-2x - 3x^2 + 4 -2x -6x^2 ] x^2 = [ -4x - 9x^2 + 4] / x^2 =

= [-9x^2 - 4x + 4] / x^2
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Can you guys please help me im confused
JulijaS [17]

Answer:

The bullet point between the numbers means times in this case, in some other cases it would mean "and" also known as plus. Therefore, the correct answer is the second one.

Step-by-step explanation:

In each half unit cube there is 6 cubes. ⇒

6 + 6 + 6 = 18 ⇒

But, this is not one of the options.⇒

So, we have to make the equation a bit different to solve it. ⇒

2 x 3 x 2, is the first option. ⇒

This is incorrect, as it equals 12. ⇒

The sum we are looking for is 18. ⇒

The second answer is 2 x 3 x 3. ⇒

This equals 18, we have found the correct answer. ⇒

So, there are a total of 3 half-unit cubes. ⇒

There are a total of 18 cubes. ⇒

I hope this helps!

4 0
3 years ago
Read 2 more answers
Plz read the question then solve
Oksi-84 [34.3K]

Answer:

A =80.5 ft^2

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh

The base is 14 ft and the height is 11.5 ft

A = 1/2 * 14 * 11.5

A =80.5 ft^2

3 0
3 years ago
Carli and Angela share a cell phone plan and split the bill each month last month their bill was 109 Carli went over her limit o
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3 years ago
4t+ 3.5 = 2.25 solve the equation ​
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Answer:

-0.3125

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Subtract 3.5 from both sides

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7 0
3 years ago
Read 2 more answers
7: In the rhombus, m∠1=10x, m∠2=x + y, and m∠3= 5z. Find the values of x, y, and z.
malfutka [58]
Angles 1, 2, and 3 are all 90°.

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5z = 90
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The values of (x, y, z) are (9, 81, 18).

7 0
4 years ago
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