Answer:
The standard form of the equation is

Step-by-step explanation:
The given circle has equation:

We regroup similar terms to obtain:

We now complete the square to obtain:


Or

This is now of the form:

which is referred to as the standard form equation of the circle:
Create the equation:
250-13x
Plug in 4 for the equation and solve:
250-13(4)
250-52
198
The answer is C. 198
Answer to one im pretty sure is 136.4 degrees and to number 2 is a parallelogram (rectangle or square) you know because the side AD is equal to BC and AB is equal to DC
Answer:
8,820m
Step-by-step explanation:
Let m be meters
We will have to find the amount of seconds in half an hour
60 * 30
= 1,800
Then we will multiply the meters she walks per second by 1,800
3.4m * 1,800
= 6,120m
1.5m * 1,800
= 2,700m
We add those two together to get the total walked in an hour
6,120m + 2,700m
= 8,820m