Hello :
cscx = -5/2
1/sinx =-5/2
sinx=-2/5
sin²x+cos²x=1
4/25+cos²x=25/25
cos²x = 21/25
between 270 and 360 : cosx > 0 cosx=(<span>√21)/5
but : sin2x =2sinx cosx
sin2x = 2(-2/5)(</span>(√21)/5)
sin2x = (-4√21)/25
Answer:
no. of packs in one box = 18
no. of boxes = 7
total no. of packs of socks = 18*7
=126
Answer:
30
70
5 (5 nickels for every 1 quarter)
Answer is 1 year 1 month and 5 days
Answer:
C
and 10%
Step-by-step explanation:
