Answer:

Step-by-step explanation:
Use the inverse cosine function.



Answer:
18 cellphones
Step-by-step explanation:
75 x 6= 450
3 x 6= 18
5/9, 9/9, 15/9, 15/9, 24/9. hope this helped.
Answer: A) When all three ticket prices generate the same revenue.
Step-by-step explanation:
Reserved tickets cost $20 each.
Field-level tickets cost $50 each.
Seat tickets cost $100 each.
Then if x represents the number of reserved tickets sold, the total revenue for the reserved tickets will be:
R(x) = x*$20
If w represents the number of field-level tickets sold, the total revenue for field-level tickets will be:
F(w) = w*$50
If y represents the number of seat tickets sold, then the total revenue for the seat tickets will be:
S(y) = y*$100
Those equations will intersect when:
R(x) = F(w) = S(y)
This will mean that they will intersect when all three tickets have the same revenue, then the correct option is:
A) When all three ticket prices generate the same revenue.
Answer:
The answer would be D: d || f.
Step-by-step explanation:
- Since the angles 4 and 7 are parallel, it would make sense for the lines that the angles are on to be parallel as well.
- It just so happens that line d and line f are completely parallel to each other and angles 4 and 7 are on the lines. So the answer would be D.