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kati45 [8]
3 years ago
13

Which table shows a proportional relationship?? help asap​

Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer:

i wanna say its the first one if its wrong im very sorry

Step-by-step explanation:

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Clara needs to purchase a new dress for a dance. There are several malls near her location. She decides to shop for the dress at
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Answer:

Population:stores to purchase a new dress for a dance.

sample: malls near her location.

Step-by-step explanation:

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3 years ago
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Please simplify 3/5(25n-10y+5n)<br> please show work
ziro4ka [17]

Answer:

18n-6y or 6(3n-y)

Step-by-step explanation:

3/5(25n-10y+5n)

3/5(30n-10y)

18n-6y

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3 years ago
Integrala x la a treia ori ln la a doua dx va rog
Studentka2010 [4]

I don't speak Romanian, but the closest translation for this suggests you're trying to compute

\displaystyle \int x^3 \ln(x)^2 \, dx

Integrate by parts:

\displaystyle \int x^3 \ln(x)^2 \, dx = uv - \int v \, du

where

u = ln(x)²   ⇒   du = 2 ln(x)/x dx

dv = x³ dx   ⇒   v = 1/4 x⁴

\implies \displaystyle \int x^3 \ln(x)^2 \, dx = \frac14 x^4 \ln(x)^2 - \frac12 \int x^3 \ln(x) \, dx

Integrate by parts again:

\displaystyle \int x^3 \ln(x) \, dx = u'v' - \int v' du'

where

u' = ln(x)   ⇒   du' = dx/x

dv' = x³ dx   ⇒   v' = 1/4 x⁴

\implies \displaystyle \int x^3 \ln(x) \, dx = \frac14 x^4 \ln(x) - \frac14 \int x^3 \, dx

So, we have

\displaystyle \int x^3 \ln(x)^2 \, dx = \frac14 x^4 \ln(x)^2 - \frac12 \left(\frac14 x^4 \ln(x) - \frac14 \int x^3 \, dx \right)

\displaystyle \int x^3 \ln(x)^2 \, dx = \frac14 x^4 \ln(x)^2 - \frac18 x^4 \ln(x) + \frac18 \int x^3 \, dx

\displaystyle \int x^3 \ln(x)^2 \, dx = \frac14 x^4 \ln(x)^2 - \frac18 x^4 \ln(x) + \frac18 \left(\frac14 x^4\right) + C

\displaystyle \int x^3 \ln(x)^2 \, dx = \frac14 x^4 \ln(x)^2 - \frac18 x^4 \ln(x) + \frac1{32} x^4 + C

\boxed{\displaystyle \int x^3 \ln(x)^2 \, dx = \frac1{32} x^4 \left(8\ln(x)^2 - 4\ln(x) + 1\right) + C}

3 0
2 years ago
2 1/2 * 1 1/6=???<br>I need help can someone explain this for me?
Dovator [93]

Answer:

35/12

Step-by-step explanation:

2 1/2 is 5/2

1 1/6 is 7/6

Multiply these together to get (5*7)/(2*6) or 35/12.

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3 years ago
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Simplify 150 -(0.4 x 150)+15
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150-(0.4 x 150)+15= 105
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3 years ago
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