Andre surveyed a random sample of 20 students and found that 13 of them were in favor of having school
start one hour later. The school has 250 students. Make
an estimate, based on Andre's survey for the number of
students in the school who are in favor of having school
start one hour later.
O 65 students
O 87 students
163 students
170 students

Step-by-step explanation:

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.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

what's the question?

step-by-step explanation:

there is no question.