Is a fixed point in the place
The first question is c
the second is d
Perimeter=2L+2W
L=W+5, substitute in place of 2L
90=2(W+5)+2W
90=2W+10+2W
90-10=4W
80=4W
80/4=W
W=20, if width is 20 than the length is 20+5=25 cm
Answer:
-2sqrt(3)/3
Step-by-step explanation:
cosec(300) = -cosec(360-300)
= -cosec(60)
= -1/sin(60)
= -1/(sqrt(3)/2)
= -2/sqrt(3)
= -2sqrt(3)/3