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zaharov [31]
3 years ago
13

Stefan measured a weight of a package as 15.375 pounds. The actual weight of the package is 15.125 pounds.

Mathematics
1 answer:
Ainat [17]3 years ago
5 0
15.375/15.125 x 100 =~98.4

The ~% is 98.4%
Error = ~2.6%

Part B

Be a near amount. Can be
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Find the derivative of f(x) = 4 divided by x at x = 2.
polet [3.4K]
<h2>Hello!</h2>

The answer is:

f'(2)=-1

<h2>Why?</h2>

To solve this problem, first we need to derivate the given function, and then, evaluate the derivated function with x equal to 2.

The given function is:

f(x)=\frac{4}{x}

It's a quotient, so, we need to use the following formula to derivate it:

f'(x)=\frac{d}{dx}(\frac{u}{v}) =\frac{v*u'-u*v'}{v^{2} }

Then, of the given function we have that:

u=4\\v=x

So, derivating we have:

f'(x)=\frac{d}{dx}(\frac{4}{x}) =\frac{x*(4)'-4*(x)'}{x^{2} }

f'(x)=\frac{d}{dx}(\frac{4}{x}) =\frac{x*0-4*1}{x^{2} }

f'(x)=\frac{d}{dx}(\frac{4}{x}) =\frac{0-4}{x^{2} }

f'(x)=\frac{d}{dx}(\frac{4}{x}) =\frac{-4}{x^{2} }

Hence,

f'(x)=\frac{d}{dx}(\frac{4}{x}) =\frac{-4}{x^{2} }

Now, evaluating with x equal to 2, we have:

f'(2)=\frac{-4}{(2)^{2} }

f'(2)=\frac{-4}{4}

f'(2)=-1

Therefore, the answer is:

f'(2)=-1

Have a nice day!

4 0
3 years ago
Read 2 more answers
Solve the following questions if |7|x|-4=a then find the value of a​
Ne4ueva [31]

Answer:

the value of a is 4 ÷ 7

Step-by-step explanation:

The computation of the value of a is shown below:

Given that the following equation

|7|x| - 4 = a

Based on the above equation

As we can see that the modulus is applied

So  after removing the modulus, it would be

7x - 4 = a

7x = 4

x = 4 ÷ 7

Hence, the value of a is 4 ÷ 7

The same would be relevant

6 0
2 years ago
SOME BODY PLEEEASE HELP ME WITH THESE I need these completed by tonight PLLEEASEE7. Find the measures of the following to the
Reika [66]

Step-by-step explanation:

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Prove:

the area of the ABC triangles is S

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8 0
2 years ago
**************************** URGENT NEED OF HELP ****************************
muminat

Answer:

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Step-by-step explanation:

8 0
3 years ago
Select the correct answer.
nordsb [41]
It’s hundred millions A is correct
8 0
3 years ago
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