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3 years ago

PLEASE HELP!!!! It’s timed

Mathematics

1 answer:

ira [324]3 years ago

7 0

Answer:

Step-by-step explanation:

we are given opposite, adjacent and hypotenuse

and said to find cos(B)

recall trigonometric identity $\cos(\theta)=\dfrac{adj}{hypo}$

let adj and hypo be 9 and 41 respectively

$\displaystyle \: \cos( \beta ) = \frac{9}{41}$

hence our answer is b

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Consider the function g(x) = (x-e)^3e^-(x-e). Find all critical points and points of inflection (x, g(x)) of the function g.

Elden [556K]

Answer:

The answer is " $cirtical\ points \ (x,g(x))\equiv (e,0),(e+3,\frac{27}{e^3})$ "

Step-by-step explanation:

Given:

$g(x) = (x-e)^3e^{-(x-e)}$

Find critical points:

$g(x) = (x-e)^3e^{(e-x)}$

differentiate the value with respect of x:

$\to g'(x)= (x-e)^3 \frac{d}{dx}e^{e-r} +e^{e-r} \frac{d}{dx}(x-e)^3=(x-e)^2 e^{(e-x)} [-x+e+3]$

critical points $g'(x)=0$

$\to (x-e)^2 e^{(e-x)} [e+3-x]=0\\\\\to e^{(e-x)}\neq 0 \\\\\to (x-e)^2=0\\\\ \to [e+3-x]=0\\\\\to x=e\\\\\to x=e+3\\\\\to x= e,e+3$

So,

The critical points of $(x,g(x))\equiv (e,0),(e+3,\frac{27}{e^3})$

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Art [367]

Answer:

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Step-by-step explanation:

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A Florida factory produces fishing reels at a rate of 800 per day, every day. In April, they are forced to cut their production

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Multiply 800 to 4/5 to see how much they make per day.

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Multiply this to 30:

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