2 years ago

Rewrite the function f(x)=7 (1/2)^3x using the properties of exponents.

Mathematics

1 answer:

Nutka1998 [239]2 years ago

3 0

Answer:

f(x) = (7 x)\/8

Step-by-step explanation:

idk, i just used wolframalpha mate...

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Find the slope and y intercept of the line that is parallel to y= -1/3x+5 and passes through the point (8,5)

jeka94

Step by step equation

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2 years ago

Find the indefinite integral. (Remember to use absolute values where appropriate. Use C for the constant of integration.) dx x(l

Pepsi [2]

I'm assuming the integral is

$\displaystyle \int \frac{dx}{x (\ln(x^2))^5}$

We have

$\ln(x^2) = 2 \ln|x| \implies (\ln(x^2))^5 = 32 (\ln|x|)^5$

Then substituting $y=\ln|x|$ and $dy=\frac{dx}x$ , the integral transforms and reduces to

$\displaystyle \int \frac{dx}{x(\ln(x^2))^5} = \frac1{32} \int \frac{dy}{y^5} \\\\ ~~~~~~~~ = \frac1{32} \left(-\frac1{4y^4}\right) + C \\\\ ~~~~~~~~ = -\frac1{128(\ln|x|)^4} + C$

which we can rewrite as

$128 (\ln|x|)^4 = 8\cdot2^4(\ln|x|)^4 = 8 (2\ln|x|)^4 = 8 (\ln(x^2))^4$

and so

$\displaystyle \int \frac{dx}{x (\ln(x^2))^5} = \boxed{-\frac1{8(\ln(x^2))^4} + C}$

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1 year ago

HELP PLS NO LINKS JUST ANSWER THANKS

MA_775_DIABLO [31]

I think it’s A... hope this helped

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There are 3 urns A, B and C each containing a total of 10 marbles of which 2, 7 and 4 respectively are red. One of the urns is s

sleet_krkn [62]

<h3>Answer: 7/13</h3>

======================================================

Explanation:

We know that the marble selected is red, so we don't need to focus on the other colors.

7 red marbles are in urn B out of 2+7+4 = 13 total red marbles.

The probability the red marble came from urn B is therefore 7/13

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vivado [14]

Answer:

you should've paid attention in class :/

Step-by-step explanation:

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