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Viktor [21]
3 years ago
8

Sairs Info Solutions is a firm that develops software applications for other companies. After the company moves into a new offic

e space, most of the employees complain about the lack of comfortable seating arrangements. Following up on the complaint, the HR department advises management to invest in studying the ergonomics of the new office space. Which of the following would serve as an incentive for the company to invest in the study of ergonomics?
A) Ergonomics increases a job's mental demands.B) Ergonomics reduces the physical strain on employees performing a job.C) Ergonomics empowers employees by giving them decision-making authorityD) Ergonomics reduces the number of reporting relationships in a job.E) Ergonomics enlarges jobs by moving employees among different jobs.
Business
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

B) Ergonomics reduces the physical strain on employees performing a job.

Explanation:

Ergonomics is referred to the study of human behavior and their efficiency in the workplace.

As employees are not able to perform properly in new office, and they are complaining about the seating arrangement, the company's initiative to do ergonomics study will help in understanding the situation, and problems and will help them to reduce any problems faced, as the study helps to encounter the mentality of workers, and problem is in majority it will be easy to understand the reason is not in employees but the problem is in workplace.

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3 years ago
Let $S$ be the set of complex numbers of the form $a + bi,$ where $a$ and $b$ are integers. We say that $z \in S$ is a unit if t
lakkis [162]

Answer:

Number of units possible in S are 4.

Explanation:

Given <em>S</em> is a set of complex number of the form a+bi where <em>a</em> and <em>b</em> are integers.

z\in S is a unit if w\in z exists such that zw=1.

To find:

Number of units possible = ?

Solution:

Given that:

zw = 1

Taking modulus both sides:

|zw| = |1|

Using the property that modulus of product of two complex numbers is equal to their individual modulus multiplied.

i.e.

|z_1z_2|=|z_1|.|z_2|

So,

|zw| = |1|\\\Rightarrow |zw| =|z|.|w| =1\\\Rightarrow |z|=\dfrac{1}{|w|}......... (1)

Let z=a+bi

Then modulus of z is   |z| = \sqrt{a^2+b^2}

Given that a and b are <em>integers</em>, so the equation (1) can be true only when |z| = |w| =1 (Reciprocal of 1 is 1). Modulus can be equal only when one of the following is satisfied:

(a = 1, b = 0) ,  (a = -1, b = 0), (a = 0, b = 1) OR (a = 0, b = -1)

So, the possible complex numbers can be:

1.\ 1 + 0i = 1\\2.\ -1 + 0i = -1\\3.\ 0+ 1i = i\\4.\ 0 -1i = -i

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6 0
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ludmilkaskok [199]
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