these are just two semi-circles, one with a diameter of 22 and the other with a diameter of 30 - 22, or 8, and therefore their radius are 11 and 4 respectively.

Answer:

Step-by-step explanation:
40ab is 40 multiplied by a multiplied by b
Answer:
B= -3
Step-by-step explanation:
Thats when the graph is at it's lowest
5/2 is the answer.
Have a nive day!
Answer: 1:2
Step-by-step explanation: if she sleeps 8 hours out of 24 hours, 8 goes into 24, 3 times so 1 to 2 ratio because you subtract the time she is awake from the time she is asleep