what is csc ( pie/2 ) =

Step-by-step explanation:

Cos(pie/2)

Pie is π

This shows that the π is in radian

2πrad= 1 complete revolution

2πrad= 360°

Divide both side by 2

πrad=180°

So let substitute πrad=180° into the cosine

Cos(π/2)=Cos(180/2)

Cos90

Cos 90 is zero

Cos(pie/2)=0

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°