7. The diagram below shows two congruent circles which touch at a single point T.
The circle, centre A, has as its equation x² + y2 - 6x -18y +45 = 0.
The line with equation 2y = x is the common tangent to the two circles through T.
x2 + y2 - 6x-18y+45 = 0
ophon
2y=x
ci
T
O
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B
(a)
Show algebraically that T has coordinates (6,3).
(b)
Hence establish the the coordinates of B, the centre of the lower circle, and
find the equation of this circle.​

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

a. -0.3 > -0.33

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2