The volume v of a rectangular box in terms of its length l, width w, and height h is given by the formula v=lwh.

part a

choose the formula for the width of a rectangular box, in terms of its volume and other dimensions.

a. w=vhl

b. w=hlv

c. w=vlh

d. w=lvh

part b

find the width w of a box with volume v = 120 cm3, l = 3 cm and h = 5 cm.

width =

cm

Answer

Part  A

None of the expressions given is the answer. The answer is w=V/(l*h)

PART B

w=8cm

Step-by-step explanation:

Part A

From the formula given to calculate the volume, we have to isolate the with w:

PART B

We know the formula to calculate with from Part A. Next, we replace given values in the formula.

w=V/(l*h)

w=120/(5*3)

w=120/15

w=8 cm

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.