Is triangle FGH congruent to triangle LMN? A.
Yes. Triangle FGH was reflected across its side FH, translated 8 units to the left, and translated 3 units up to create triangle LMN.
B.
Yes. Triangle FGH was reflected across its side FH, translated 6 units to the left, and translated 3 units up to create triangle LMN.
C.
No. Triangle FGH is not congruent to triangle LMN.
D.
Yes. Triangle FGH was rotated clockwise 180° about point F, translated 8 units to the left, and translated 3 units down to create triangle LMN.

Is triangle FGH congruent to triangle LMN?

A.
Yes. Triangle FGH was reflected across its side FH

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Ответ:

joytheqt305

13.10.2022

Mathematics

The mean and variance of the wavelength distribution for this radiation are 642.5 nm and 75 nm.

Step-by-step explanation:

The mean and variance of a continuous uniform distribution function with parameters m and n is given by :-

$\text{Mean=}\dfrac{m+n}{2}\\\\\text{Variance}=\dfrac{(n-m)^2}{12}$

Given : $m=625\ \ \ n=655$

$\text{Then, Mean=}\dfrac{625+655}{2}=642.5\\\\\text{Variance}=\dfrac{(655-625)^2}{12}=75$

Hence, the mean and variance of the wavelength distribution for this radiation are 642.5 nm and 75 nm.

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