Answer:
if the total sale was $2846, it would make 400 adult ticket and 846 student ticket. if the collected ticket was 1247 it would make 400 adult ticket and 847 student ticket
Step-by-step explanation:
6 pairs + 11 pairs = 17 pairs
They started with 17 pairs.
Hope this helps.
Answer:
b)0, yes
Step-by-step explanation:
Given:
Vectors (4,8) . (6,-3)
Finding inner product of vectors:
= 4x6 + 8x-3
=24-24
=0
Now to check the angle between them using formula a.b=|a|.|b|cosθ
|a|=
=8.9
|b|=
=6.7
Putting values of a.b=0 and |a|=8.9, |b|=6.7 in a.b=|a|.|b|cosθ we get,
0= 8.9(6.7)cosθ
cosθ =0
θ=90 degrees
Hence the two vectors are perpendicular !
180-43-66=71°
14/sin(71) = 14.80668954
14.80668954 sin(43) = 10.09813798
e= 10.1 units