Answer:
Center and radius of the circle of the equation
center = ( 4,9) Radius = 1
Step-by-step explanation:
Given -
Equation of circle is 
The equation of circle is represented by

where a and b are center of circle and radius r
Comparing these equation
then a = 4 and b = 9 and r = 1
Answer:
child = $14
senior = $8
Step-by-step explanation:
3s + c = 38
3s + 2c = 52
52 - 38 = 14
child = $14
3s + 14 = 38
3s = 24
divide by 3
senior = $8
Answer:
3600 degree
Step-by-step explanation:
the sum of the interior angles of a polygon of n sides is
sum =180∘(n−2)here
=22⇒sum of interior angles =180∘×20 3600
Answer:
The lines are perpendicular
Step-by-step explanation:
we have

isolate the variable y
----> equation A
The slope of the line A is 
-----> equation B
The slope of the line B is 
Remember that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
In this problem
The slopes of line A and line B are opposite reciprocal
therefore
The lines are perpendicular
Answer:
multiplication
division
addition
subtraction
Step-by-step explanation: