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katen-ka-za [31]
3 years ago
13

I need the answer with steps please​

Mathematics
1 answer:
aalyn [17]3 years ago
7 0
4b+6=-2 you are solving for b
-6 to both sides (6 and -2)
4b=-8
Now divide 4 to both side (4b and -8)
Your answer is b=-2
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devlian [24]

Answer:

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3 years ago
Finding Derivatives Implicity In Exercise,Find dy/dx implicity.<br> x2e - x + 2y2 - xy = 0
Klio2033 [76]

Answer:

the question is incomplete, the complete question is

"Finding Derivatives Implicity In Exercise,Find dy/dx implicity . x^{2}e^{-x}+2y^{2}-xy"

Answer : \frac{dy}{dx}=\frac{y-(2-x)xe^{-x}}{(4y-x)}

Step-by-step explanation:

From the expression  x^{2}e^{-x}+2y^{2}-xy" y is define as an implicit function of x, hence we differentiate each term of the equation with respect to x.

we arrive at

\frac{d}{dx}(x^{2}e^{-x )+\frac{d}{dx} (2y^{2})-\frac{d}{dx}xy=0\\

for the expression \frac{d}{dx}(x^{2}e^{-x}) we differentiate using the product rule, also since y^2 is a function of y which itself is a function of x, we have

(2xe^{-x}-x^{2}e^{-x})+4y\frac{dy}{dx}-x\frac{dy}{dx} -y=0\\\\(2-x)xe^{-x}+(4y-x)\frac{dy}{dx}-y=0 \\.

if we make dy/dx  subject of formula we arrive at

(4y-x)\frac{dy}{dx}=y-(2-x)xe^{-x}\\\frac{dy}{dx}=\frac{y-(2-x)xe^{-x}}{(4y-x)}

5 0
4 years ago
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nikdorinn [45]

Answer:

<em><u>4(10+9) - 40 + 36</u></em>

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3 years ago
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vodomira [7]

Answer:

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Step-by-step explanation:

Definition of absolute value:

|a| = a if a ≥ 0

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Examples:

|2| = 2

|-2| = -(-2) = 2

|0.45| = 0.45

|-0.45| = -(-0.45) = 0.45

|1000| = 1000

|-1000| = 1000

Therefore

|1.7| = 1.7

8 0
3 years ago
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yulyashka [42]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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