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jasminevargasolea
23.06.2019 •
Mathematics
In circle a, tangent fh and chord eg intersect to form angle heg. find the measure of angle heg. a. 36 degreesb. 72 degreesc. 144 degreesd. 216 degrees
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Ответ:
Option B is correct, i.e. 72 degrees.
Step-by-step explanation:
Given is a diagram of circle in which tangent-chord angle is formed i.e. angle ∠HEG.
We can find the angle ∠HEG using the Tangent-Chord Angle formula as follows:-
Tangent-chord angle = Half of intercepted arc.
angle ∠HEG = 1/2 arcEG.
(3x + 18) = 1/2 * (9x - 18)
6x + 36 = 9x - 18
9x - 6x = 36 + 18
3x = 54
x = 18.
angle ∠HEG = 3x+18 = 3*18 + 18 = 72 degrees.
Hence, option B is correct, i.e. 72 degrees.
Ответ:
Given fx (x) = λe^λx
Fx (x) = 1 – e^-λx x…0
To find distribution of Min (X1,….Xn)
By applying the equation
fx1 (x) = [n! / (n – j)! (j – 1)!][F(x)]^j-1[1-F(x)]^n-j f(x)
For minimum j = 1
[Min (X1,…Xn)] = [n!/(n-1)!0!][F(x)]^0[1-(1-e^-λx)]^n-1λe^-λx
= ne^[(n-1) λx] λe^(λx)
= nλe^(-λx[1+n-1])
= nλe^(-nλx)