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3 years ago

Someone help pls?! Thank youu

Mathematics

2 answers:

Ivenika [448]3 years ago

7 0

Answer:

50 days

Step-by-step explanation:

1/8 pound of weight = 25/4 days

8/8 pound of weight = 25/4 × 8

= 200/4

= 50 days

Reptile [31]3 years ago

3 0

Answer:

A. 50

B. 7.28? pounds

Step-by-step explanation:

I'm sure to my answer in leter A so don't worry.

But in letter B i'm not pretty much sure.

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RoseWind [281]

Answer:

3/8

Step-by-step explanation:

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2 years ago

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Use the Distributive Property to simplify each expression:

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6a + 60

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3 years ago

What is the equation in point slope form, for a line that goes through (-4, -1) and (5, 7) brainly

nexus9112 [7]

first we have to find the slope Y2-Y1/ X2- X1

7-(-1)=8

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4 years ago

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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

3 years ago

Need help quick!! Please explain how you got your answer.

Annette [7]

Answer:

A. acute, scalene

Step-by-step explanation:

The angles are less than 90 degrees. Therefore, the triangle is acute. The sides are uneven. Therefore, the figure shown is a scalene triangle.

5 0

4 years ago