The domain of the function is \[A \ge0\] If A is negative we get an imaginary number for the radius. This makes sense because the area of a circle cannot be negative.
Answer: 88
Step-by-step explanation: 77+82+73= 232. So you need an 80 for average. So what you have to do is 80x4 and that equals to 320. last step is to subtract 320-232 and you get 88. 77+82+73+88=320.
B and D are correct. D is C and A aren't correct because a plane consists of three points.
Answer:
<
Step-by-step explanation:
2*18-18=18
2*[28-3*(2+4)] = 20
18<20
Answer:
Step-by-step explanation:
Here are some tips for how to split the bill when you are out with friends:
Splitting the Bill with Friends
To avoid any conflict, talk openly with your friends about sharing the bill as early as possible. Then, at the restaurant, ask the server if he or she can provide your party with separate checks. Even if the restaurant does not provide this option, asking this question will show everyone that you are only willing to pay for your portion. However, this approach only works if everyone hears your conversation with the server.
