Answer:
r = 16 units
Step-by-step explanation:
From the figure attached,
AB is the tangent drawn from a point A to the circle C.
BC = r [Radius of the circle]
Length of AC = (18 + r)
AB = 30
By the property of a tangent drawn to a circle,
"Radius of a circle and tangent are perpendicular to each other"
AB ⊥ BC
By applying Pythagoras theorem in ΔABC,
AB² + BC² = AC²
(30)² + r² = (r + 18)²
900 + r² = r² + 36r + 324
36r = 900 - 324
r = 
r = 16 units
I would simply solve the fraction as a division question. To divide 36 by 10, just move the decimal one place to the left. That gives you 3.6
Answer:

Step-by-step explanation:
Given


Required
Determine the relationship between x and y
First, we calculate the unit rate, using:

Where k is the unit rate.
Substitute 176 for y and 44 for y

Divide both sides by 44




Substitute 4 for k in 

Hence, the relationship between x and y is: 
<span>It is also called order property of addition. This means that addends can be added in any order and the sum is always the same.</span>
Answer:
Slope= 3/5
y-intercept= -3
Step-by-step explanation: