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3 years ago

Why can’t I figure out how to be friends with someone on this app lol

Mathematics

2 answers:

Cerrena [4.2K]3 years ago

7 0

Answer:

It's simple ill show yu.

Step-by-step explanation:

First, you tap on the persons avatar name, then you click the plus button to friend them! ;)

blondinia [14]3 years ago

3 0

Answer:

Mhmm

Step-by-step explanation:

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The CEO of a company wants to determine if taking the employees to a company retreat would boost their morale.

bagirrra123 [75]

Answer:

Step-by-step explanation:

The correct answer is above

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3 years ago

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Your friend has $100 when he goes to the fair.he spends $10 to enter the fair and $20 on food.rides at the fair cost $2 per ride

serg [7]

Answer:

The answer is A f(x)=-2x + 70

Step-by-step explanation:

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2 years ago

Which equation can be used to solve for in the following diagram?

Ivahew [28]

Answer:

the Answer is 3x+12)+X=180

5 0

3 years ago

Evaluate using integration by parts

PolarNik [594]

Rather than carrying out IBP several times, let's establish a more general result. Let

$I(n)=\displaystyle\int x^ne^x\,\mathrm dx$

One round of IBP, setting

$u=x^n\implies\mathrm du=nx^{n-1}\,\mathrm dx$

$\mathrm dv=e^x\,\mathrm dx\implies v=e^x$

gives

$\displaystyle I(n)=x^ne^x-n\int x^{n-1}e^x\,\mathrm dx$

$I(n)=x^ne^x-nI(n-1)$

This is called a power-reduction formula. We could try solving for $I(n)$ explicitly, but no need. $n=5$ is small enough to just expand $I(5)$ as much as we need to.

$I(5)=x^5e^x-5I(4)$

$I(5)=x^5e^x-5(x^4e^x-4I(3))=(x-5)x^4e^x+20I(3)$

$I(5)=(x-5)x^4e^x+20(x^3e^x-3I(2))=(x^2-5x+20)x^3e^x-60I(2)$

$I(5)=(x^2-5x+20)x^3e^x-60(x^2e^x-2I(1))=(x^3-5x^2+20x-60)x^2e^x+120I(1)$

$I(5)=(x^3-5x^2+20x-60)x^2e^x+120(xe^x-I(0))$

Finally,

$I(0)=\displaystyle\int e^x\,\mathrm dx=e^x+C$

so we end up with

$I(5)=(x^4-5x^3+20x^2-60x+120)xe^x-120e^x+C$

$I(5)=(x^5-5x^4+20x^3-60x^2+120x-120)e^x+C$

and the antiderivative is

$\displaystyle\int2x^5e^x\,\mathrm dx=(2x^5-10x^4+40x^3-120x^2+240x-240)e^x+C$

8 0

2 years ago

An expressions is shown. what is the value of the expression? 2315.5+(-3166.75)

Zepler [3.9K]

Adding a negative number is the same as subtracting a positive number. So 2315.5 - 3166.75 = -851.25

7 0

2 years ago