a) Given triangle is a right angle triangle
So we use trigonometric properties


y = sin(51) * 12
y= 9.3257515
y= 9.33
b) It is a right angle triangle
sin(theta) = opposite / hypotenuse
sin ( theta) = 
theta = 
theta = 67.38 degree
c) 


x= 29.238044
Hypotenuse x= 29.24
Answer:
Step-by-step explanation:
Let c represent the number of child tickets that were sold.
Let a represent the number of adult tickets that were sold.
The Celluloid Cinema sold 150 tickets to a movie. This means that
a + c = 150
A child ticket cost $7.75 and an adult ticket cost $10.25. If the cinema sold $1470 worth of tickets, it means that
10.25a + 7.75c = 1470
Therefore, the system of equations that could be used to determine how many adult tickets, a, and how many child tickets c were sold is
1) a + c = 150
10.25a + 7.75c = 1470
Option 2 is incorrect because a + c is not equal to 1470
Option 3 is incorrect because rate of child and adult tickets were interchanged.
Option 4 is incorrect because a + c is not equal to 1470 and the rate of child and adult tickets were interchanged.
Answer:
13
Step-by-step explanation:
35% = .35
20 • .35 = 7
20 - 7 = 13
there are various possible answers ( up till infinity)
i'll give you five possible ones:
1) x = -16 and y = 1
2) x = -11 and y = 5
3) x = -1 and y = 13
4) x = 4 and y = 17
5) x = 104 and y = 97....
I think the answer might be 45