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4 years ago

PLZ HELP ME ?????????

Mathematics

2 answers:

yulyashka [42]4 years ago

8 0

58(3.1416)=176/2=88
The answer is 88

bagirrra123 [75]4 years ago

8 0

The answer for your question us 4.30

You might be interested in

Let X1, · · · , Xn be independent identically distributed random variables with probability density function f(x) = 1 2σ exp − |

Igoryamba

Answer:

σˆ =

sPn

i=1 X2

Step-by-step explanation:

To obtain, the maximum likelihood ratio, we use the following method.

l(σ) = Xn

i=1 "

− log 2 − log σ −

|Xi

Let the derivative with respect to θ be zero:

(σ) = Xn

i=1 "

−

|Xi

= −

i=1 |Xi

= 0

and this gives us the MLE for σ as

σˆ =

i=1 |Xi

Again this is different from the method of moment estimation which is

σˆ =

sPn

i=1 X2

As our answer

8 0

3 years ago

WHICH HAT HELP THANK YOU WHICH HAT HELP THANK YOU

Svetradugi [14.3K]

Answer:

They're both cool but I personally like the first one better lol

6 0

3 years ago

Read 2 more answers

Derivative of<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B3x%7D%5E%7B2%7D%20-%202x%20-%201%20%7D%7B%20%7Bx%7D%5E%7B2

Anastaziya [24]

Answer:

$\displaystyle \frac{dy}{dx} = \frac{2x + 2}{x^3}$

Step-by-step explanation:

we would like to figure out the derivative of the following:

$\displaystyle \frac{ { 3x }^{2} - 2x - 1 }{ {x}^{2} }$

to do so, let,

$\displaystyle y = \frac{ { 3x }^{2} - 2x - 1 }{ {x}^{2} }$

By simplifying we acquire:

$\displaystyle y = 3 - \frac{2}{x} - \frac{1}{ {x}^{2} }$

use law of exponent which yields:

$\displaystyle y = 3 - 2 {x}^{ - 1} - { {x}^{ - 2} }$

take derivative in both sides:

$\displaystyle \frac{dy}{dx} = \frac{d}{dx} (3 - 2 {x}^{ - 1} - { {x}^{ - 2} } )$

use sum derivation rule which yields:

$\rm\displaystyle \frac{dy}{dx} = \frac{d}{dx} 3 - \frac{d}{dx} 2 {x}^{ - 1} - \frac{d}{dx} {x}^{ - 2}$

By constant derivation we acquire:

$\rm\displaystyle \frac{dy}{dx} = 0 - \frac{d}{dx} 2 {x}^{ - 1} - \frac{d}{dx} {x}^{ - 2}$

use exponent rule of derivation which yields:

$\rm\displaystyle \frac{dy}{dx} = 0 - ( - 2 {x}^{ - 1 -1} ) - ( - 2 {x}^{ - 2 - 1} )$

simplify exponent:

$\rm\displaystyle \frac{dy}{dx} = 0 - ( - 2 {x}^{ -2} ) - ( - 2 {x}^{ - 3} )$

two negatives make positive so,

$\displaystyle \frac{dy}{dx} = 2 {x}^{ -2} + 2 {x}^{ - 3}$

<h3>further simplification if needed:</h3>

by law of exponent we acquire:

$\displaystyle \frac{dy}{dx} = \frac{2 }{x^2}+ \frac{2}{x^3}$

simplify addition:

$\displaystyle \frac{dy}{dx} = \frac{2x + 2}{x^3}$

and we are done!

5 0

3 years ago

X^2+3x+37=-7x

elena-s [515]

Answer:

x= -74 or -84

Step-by-step explanation:

x^2+3x+37=-7x

x^2+3x+7x+37=0

x^2+10x+37=0

this convert to following

$( - b + - \sqrt{ {b}^{2} } - 4 \times a \times c) \div 2 \times a$

-b= -(10), a= 1, c =37

according to that

x= -74 or x= -84

8 0

3 years ago

Please help!!!!!! ALL

ikadub [295]

a and d are supplementary angles, forming a line or adding to 180 degrees, so

d =180 - 120 = 60 degrees

f and h are called vertical angles, which are congruent.

h=70 degrees

c and f are supplementary. I think they're called consecutive angles.

f = 180 - c = 70 degrees

b and c are supplementary, c and g are congruent so

g = 180 - b = 120 degrees

5 0

4 years ago