Answer:
15 races
Step-by-step explanation:
The team has competed in 45 and has won 30. So the success rate is:
Success rate is:

We have to find the number of races the team needs to win for 75% success rate
Which means that

We have to solve the equation for x

The team needs to win 15 races to get 75% success rate ..
( 3 x 10^9 ) x ( 2 x 10^17 ) = 6 x 10 ^ 26
Just save the picture of the math problem to your computer, then when u ask your question, u will see 3 buttions, click the paperclip button to upload the math problem and let it load, sometimes it will load, sometimes not, so ur going to have to click the edit button when your question is on the list, and than click the paperclip button again to upload it one more time and than it will work, u need to hurry up and do it b4 someone answers it and u wont be able to edit it.
Its 10.4if u need proof just ask :)
Answer:
Step-by-step explanation:
Area of sector = ½ r² ∅
1/2 ( 9^2) pi/6
81 x pi/6 x 1/2
81 x (0.52359877559) x 1/2
Area of sector = 21.21