Answer:
15% discount was offered with the family ticket option.
Step-by-step explanation:
So adult is 55 so 55 x 2=110
45 x 2=90
110+90=200 so 170 ( Family ticket )
170 divide by 200=0.85 x 100=85% 100% - 85%=15%
Answer:
cos(a + b) = 
Step-by-step explanation:
cos(a + b) = cos(a).cos(b) - sin(a).sin(b) [Identity]
cos(a) = 
cos(b) = 
Since, terminal side of angle 'a' lies in quadrant 3, sine of angle 'a' will be negative.
sin(a) =
[Since, sin(a) =
]
= 
= 
Similarly, terminal side of angle 'b' lies in quadrant 2, sine of angle 'b' will be negative.
sin(b) =
= 
= 
By substituting these values in the identity,
cos(a + b) = 
= 
= 
= 
Therefore, cos(a + b) = 
Answer: choice A or (-25)(-25)=625
Step-by-step explanation:
its choice A because a negative times a negative equals a positive :)
Y=1.5 at the midpoint of GH. To do this you add the y values of the endpoints together and divide by two ----> 5-2= 3 ----> 3/2= 1.5
Hope this helps you !!