3a x 3=729
9a=729
--- -----
9 9
a=81
The number is 81.
Check: 3(81)x3=729
Your answer ---> D . 2 2/9
Answer: ≈ 5.2
Step-by-step explanation:
You're gonna want to use the Law of Cosines to solve:
c² = a² + b² -2abcos(R)
c² = 6² + 9² - 2(6)(9)cos(34°)
c² = 36 + 81 - 108cos(34°)
c² = 117 - 108(.82904)
c² = 27.46368
√c² = √27.46368 => 5.2405 = 5.2
Answer:
50 i think
Step-by-step explanation:
First, subtract the monthly fee from the October bill, which would be $52.50.
Now, divide this by $0.10.
Parker talked for 525 minutes.<em /><em />
Hope this helps! :)
