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il63 [147K]
3 years ago
6

Differentiating Exponential Functions In Exercise, find the derivative of the function. y = x2ex

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0

Answer:

y' = xe^{x}(2 + x)

Step-by-step explanation:

If we have a product function y, in the following format

y = f(x)*g(x)

This function has the following derivative

y' = f'(x)*g(x) + g'(x)*f(x)

In this problem, we have that:

y = x^{2}e^{x}

So

f(x) = x^{2}, f'(x) = 2x, g(x) = e^{x}, g'(x) = e^{x}

The derivative of the function is:

y' = f'(x)*g(x) + g'(x)*f(x)

y' = 2xe^{x} + x^{2}e^{x}

y' = e^{x}(2x + x^{2})

y' = xe^{x}(2 + x)

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6 0
3 years ago
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Ierofanga [76]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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An open box is made from a 20​-cm by 50​-cm piece of tin by cutting a square from each corner and folding up the edges. The area
kipiarov [429]

Answer:

Therefore,

The length of the sides of the​ squares is

x=7\ cm

Step-by-step explanation:

Let "x" be the length of Cut Square,

As the tin size(Dimension) is

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So the size(Dimension) of box will be

(20 - 2x) × (50 - 2x)

Length = 50 - 2x

Width = 20 - 2x

Area of base of box = 216 cm²

To Find:

x = ?

Solution:

Area of Rectangular field is given by

(Area\ of\ Rectangle(Box)) = Length\times Width

Substituting the values we get

216=(50-2x)(20-2x)

Applying Distributive property we get

216=1000-100x-40x+4x^{2}

4x^{2}-140x+784=0

Dividing throughout by 4 we get

x^{2}-35x+196=0

On Factorizing we get

x^{2}-28x-7x+196=0\\\\(x-7)(x-28)=0\\\\x-7=0\ or\ x-28=0\\\\x=7\ or\ x = 28

As x cannot be 28 because tin size is 20 cm × 50 cm i.e longer than 20

Therefore,

x=7\ cm

Therefore,

The length of the sides of the​ squares is

x=7\ cm

5 0
4 years ago
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Answer: -6
Step-by-step explanation:
From the question, Elsa pumped 18 gallons of water out of her pool and this was done over a period of 3 minutes at a constant rate. Since it is done at a content rate, to get the change in the amount of water in the pool each minute, we divide 18 gallons by 3. This can be written mathematically as:
= 18 gallons ÷ 3
= 6 gallons
Change = -6
The change in the amount of water in the pool each minute will be -6gallons hope this helps
6 0
3 years ago
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How many 3s must be multiplied together for the product to be a number between 200 and 300? Help Please
KiRa [710]

Answer:

5

Step-by-step explanation:

3 times 3 times 3 times 3 times 3 = 243

243 is between 200 and 300

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2 years ago
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