Diameter is Radius times 2.
Since the radius is 9, 9 times 2 is 18. The diameter is 18.
Answer:
Step-by-step explanation:
Points are (1,9), (2,4), and (4,-30).
Subtract the first from the second.
-5 = 3a+b
Subtract 4 times the second from the third.
-34=12a+2b
-14=-2b
b=7
a=-4
c=6
P = 6
Q = 15
How to solve:
Note the equal sign. This means that both expression's out come must equal each other. For that to happen, everything inside both expressions must equal each other. In this case:
6x + Q = Px + 15; 6x + 15 = 6x + 15
hope this helps
Using elimination method. Using substitution will cause some fraction problems.
c- child tickets
a- adult tickets
4a + 7c = $83
5a + 6c = $90
multiply by -5
-20a - 35c = -$415
20a + 24c = $360
-11c= -$55
c = $5 child tickets
4a + 7(5)= $83
4a + 35 = $83
4a = $48
a= $12 adult tickets