Answer:
I cant really see the picture make be make another question and upload a screenshot?
:)
Step-by-step explanation:
Answer:
(-21,-19)

Standard form
Step-by-step explanation:
We are given the equation of circle

General equation of circle:

Centre: (-g,-f)
Radius: 
Compare the equation to find f, g and c from the equation



Centre: (-21,-19)
Radius (r) 
Standard form of circle:

The centre of circle at the point (-21,-19) and its radius is
.
The general form of the equation of a circle that has the same radius as the above circle is standard form.
Answer:
The midpoint is (3/2,0)
Step-by-step explanation:
To find the x coordinate of the midpoint, add the x coordinate of the endpoints and divide by 2
(7+-4)/2 = 3/2
To find the y coordinate of the midpoint, add the y coordinate of the endpoints and divide by 2
(-2+2)/2 = 0
The midpoint is (3/2,0)
ΔBAC ≅ ΔDAC by ASA congruency
Step-by-step explanation:
Congruency of any triangle can be proved by either of these four criteria. These include
SSS, SAS, ASA, AAS where S= sides and A= Angles
In the given figure ΔBAC & ΔDAC
Since the line, AC is a common angular bisector of ∠BAC and ∠DAC
∴ ∠BAC = ∠DAC ∵ AC is an angular bisector and bisects the ∠BAD into two halves
∠BCA=∠DCA ∵AC is an angular bisector and bisects the ∠DCB into two halves
AC=AC ∵Common side
∴ ΔBAC ≅ ΔDAC ⇒by Angle-Side-Angle (ASA) congruency criterion
Charles law:
V1/T1=V2/T2
where T is in deg. K.
75°F=297.04°K
55°F=285.92°K
=>
V2=V1/T1*T2
=3000*(285.92/297.4)
=2887.8 c.f.