Answer:
3/11 for two red balls
2/11 for two green balls
Step-by-step explanation:
6 red and 5 green balls
- first ball - red= 6/11, green= 5/11
- second red ball- 5/10=1/2, second green ball- 4/10= 2/5
- Two red balls = 6/11*1/2= 3/11
- Two green balls= 5/11*2/5= 2/11
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:quadrupled
Step-by-step explanation:
If the radius of a circle is doubled, the area of the circle will be quadrupled and the circumference will also be doubled. This makes sense because the area of a circle is directly proportional to the square of the radius of the circle (if the radius of a circle is increased x times, its area will be increased to x^2 times the original area), whereas the circumference is proportional to the size of the radius (if the radius of a circle is increased x times, its circumference will increase x times).
<span>91.5095623419 is the answer</span>
Answer:
a valley glacier
Step-by-step explanation:
These are confined by mountains on each side and can only flow down through a valley. Both types of glacier have tremendous impacts on the surrounding landscape, changing it in various ways as they pass by.
