Explain how you could distribute 50 questionnaires randomly to pupils from a school of 1000. This is taken from my Homework im in year 10 and the topic is data

From a roster of the 1000 students sorted alphabetically, you could  give the questionnaire to every 20th student listed. This would ensure a simple, random sample.

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

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y

=

−

2

find the upper bound of the range.

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y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation: