The value of
is -3. 
<h2>Procedure - Differentiability</h2><h3 /><h3>Chain rule and derivatives</h3><h3 />
We derive an expression for
by means of chain rule and differentiation rule for a product of functions:
(1)
If we know that
,
,<em> </em>
,<em> </em>
and
, then we have the following expression:




The value of
is -3. 
To learn more on differentiability, we kindly invite to check this verified question: brainly.com/question/24062595
<h3>Remark</h3>
The statement is incomplete and full of mistakes. Complete and corrected form is presented below:
<em>The point (-2, 4) lies on the curve in the xy-plane given by the equation </em>
<em>, where </em>
<em> is a differentiable function of </em>
<em> and </em>
<em> is a differentiable function of </em>
<em>. Selected values of </em>
<em>, </em>
<em>, </em>
<em> and </em>
<em> are given below: </em>
<em>, </em>
<em>, </em>
<em>, </em>
<em>. </em>
<em />
<em>What is the value of </em>
<em> at the point </em>
<em>?</em>
Find the orthogonal expansion.
=832
-842
The missing number is
(Translated)
The number of btus that are needed to cool lucia’s apartment is 20,400 btus.
<h3>BTUs needed</h3>
First step
Left side=12×10×20
Left side=2400 cubic feet
Middle =16×10×(20-9)
Middle =16×10×11
Middle =1,760 cubic feet
Right side=20×10×20
Right side= 4000 cubic feet
Second step
BTUs:
BTUs=(2400+1760+4000)×2.5
BTUs=8160×2.5
BTUs=20,400 Btus
Therefore the number of btus that are needed to cool lucia’s apartment is 20,400 btus.
Learn more about btus here:brainly.com/question/4260087
Answer:
The mitochondria and chloroplasts both produce energy in a plant cell.
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