Answer:

Step-by-step explanation:
The equation of a circle is
where
is the center of the circle and
is the radius of the circle.
Given that
and it passes
, their distance between each other must the radius of the circle, so we can use the distance formula to find the radius:

Therefore, if the length of the radius is
units, then
, making the final equation of the circle 
Answer:
The formula to find the slope with given points is: Y2-Y1 over X2-X1.
Step-by-step explanation:
Answer:
x = -6f
Step-by-step explanation:
solve for x by simplifying both sides of the equation, then isolating the variable.
Answer:
False
Step-by-step explanation:
The formula to find Simple interest is
I=<u>P×</u><u>R</u><u>×</u><u>T</u>
100.
To ease the understanding, let's write it in degrees and not in Radian:
Formula of conversion: Degree°/180 = Radian/π
Convert 7π/4 in degrees: = (7x180)/4 = 315°
This angle is in the IV th Quadrant of the UNIT circle. So you can write 315° or - 45° .
sin(7π/4) = sin(315°) = sin( - 45°) = - sin(45°) = - (√2)/2