Use Pythagorean Theorem:
a² + b² = c²
"a" is one side of the right triangle.
Its length is: radius of larger circle minus radius of smaller circle: (11 - 3 = 8)
The distance between the center of the circles creates the hypotenuse (17)
8² + b² = 17²
b² = 225
b = 15
Answer: the length of the common external tangent is 15.
Answer:
48
Step-by-step explanation:
2 x 2 x 2 x 2 = 16
16 + ?
4 x 4 x 4 = 64
0.5 x 64 = 32
32 + 16 = 48
Answer:
a = 30/5 = 6
Step-by-step explanation:
Final Answer: No Solution
Steps/Reasons/Explanation:
Question: 
<u>Step 1</u>: Divide both sides by
.

<u>Step 2</u>: Expand.

<u>Step 3</u>: Since
is false, we have no solution.
No Solution
~I hope I helped you :)~