Answer:
1. No, Joe is not correct
2. 
Step-by-step explanation:
Given: b and c are parallel lines
To find:
1. whether the given statement is correct or not
2. 
Solution:
1.
Sum of two angles that form a linear pair is equal to 
(linear pair)

So, Joe is not correct
2.
If two lines are parallel then alternate interior angles are equal.
As b and c are parallel lines,
(alternate interior angles)
The answers would be -8 and 18
-8×18 = -144
-8+18 = 18-8 = 10
The radius of the given circle is 2.84 units
Step-by-step explanation:
Step 1 :
Given
The perimeter of a quarter table is 17.85
We need to find the circle's radius.
Step 2 :
The circle's perimeter is given by the formula, 2
r where r represents the circle's radius
So from this we have ,
2
r = 17.85
We can determine the radius by dividing the perimeter value by 2
= > r = 17.85 divided by 2
r
= 2.84 [ taking
=
]
Step 3 :
Answer :
The radius of the given circle is 2.84 units
The answer for the equation is -1