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3 years ago

12

five times the difference of twice a number and three, decreased by the sum of the number and eight, equals thirteen

1 answer:

trapecia [35]3 years ago

7 0

5x(2y-3)-(y+8)=13 I believe this is correct

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Establish for which constants c the following function is a density.

Valentin [98]

By "density" I assume you mean "probability density function". For this to be the case for $f(x)$ , we require

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Since

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you have

$\displaystyle\int_{-\infty}^\infty f(x)\,\mathrm dx=\int_0^2cx^{1/2}\,\mathrm dx=\dfrac{2c}3x^{3/2}\bigg|_{x=0}^{x=2}=\dfrac{2^{5/2}c}3=1$

which means

$c=\dfrac3{2^{5/2}}=\dfrac3{4\sqrt2}$

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3 years ago

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kotykmax [81]

Answer:

Down below

Step-by-step explanation:

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2 years ago

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ser-zykov [4K]

The answer has to be 144 since it is the only one smaller than 180

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2 years ago

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Step-by-step explanation:

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3 years ago

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The expression is

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