Refer to the figure shown below.
When the point Y (-1,-3) is rotated 180 about O, it sweeps a semicircular arc to the point Y' (1,3).
The radius of the semicircle is

Answer: 3. Y' (1,3)
Answer:
1,6
Step-by-step explanation:
1,6 thats how
Answer:
-0.0006048
Explanation:
Given the expression:

We can write the expression in the form below:

Next, we simplify the result.

Therefore:
Let x be the number of child admission tickets sold:
Child's ticket = x
There is a total of 145 tickets sold:
Adult = 145 - x
Total sales is $1020.80:
5.6x + 9.2(145 - x) = 1020.8
Solve for x:
5.6x + 9.2(145 - x) = 1020.8
5.6x + 1334 - 9.2x = 1020.8
3.6x = 313.2
x = 313.2 ÷ 3.6
x= 87
Answer: Number of child's ticket = 87