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2 years ago

Please help asap

Mathematics

1 answer:

Nostrana [21]2 years ago

6 0

I Think The answer is d I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you

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The Weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to agi

fenix001 [56]

Answer:

Step-by-step explanation:

Given that

$\alpha =2.5$ , $\beta =220$

The weibull distribution with parameters $\alpha \ \ and \ \ \beta$

where $\alpha =0 \ \ , \beta =0$

$F(x,\alpha ,\beta) \left|\begin{array}{cc}\frac{\alpha }{\beta } x^{\alpha-1e^-(x/\beta)^\alpha &x\geq 0\\0&x$

Then,

$F(x,\alpha ,\beta )=\left|\begin{array}{cc}0&x$

A) The probability that a specimen's lifetime is at most 250 is

$P(X\leq 250)=F(250,2.7,220)\\\\=1-e^-^(250/220)^{2.7}\\\\=1-0.2436\\\\=0.7564$

The probability that the specimen's life time is more than 300 is

$P(X>300)=1-P(X\leq 300)\\\\=1-F(300;2.7,220)\\\\=1-(1-e^-^{(300/220)^{2.7}$

$=e^-^{(300/220)^{2.7}$

= 0.0992

b)The probability of the specimen's lifetime is between 100 and 250

$P(100$

c) The value such that exactly 50% of all specimens have lifetimes exceeding that value is

$P(X>x)=0.50\\\\1-P(X$

x = 192.07

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3 years ago

Find the value(s) of x that make the equation true.

ZanzabumX [31]

$4 {x}^{2} + 6x + 2 = 0 \\ 2(2 {x}^{2} + 3x + 1) = 0 \\ 2(2x + 1)(x + 1) = 0 \\ x = - \frac{1}{2} \: or \: x = - 1$
Hope this helps. - M

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3 years ago

A kite has diagonals 5.8 ft and 6 ft. What is the area of the kite?

Doss [256]

Multiply the two diagonals and divide by 2

5.8 *6=34.8
Divide by 2
17.4

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3 years ago

WhAt equation have the same solution as 3x-12=24

Colt1911 [192]

Answer:

x=12

Step-by-step explanation:

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3 years ago

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You move up 3 units and down 7 units. You end at (2, -4). Where did you start?

Lina20 [59]

Answer:

(2, 0)

Step-by-step explanation:

0+3=3

3-7= -4

you only said up and down, so that would be on the y-axis, so the x- coordinate would remain the same

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4 years ago

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