Answer:
- 
Step-by-step explanation:
Given:
10 poker chips:
Let the stack has positions (1,2,3,4,5,6,7,8,9,10)
So we can find all possible outcomes of the stack is: =
and the possibility of a stack to be identical while flipping is:
So the different 10-chip stacks can Dave make if two stacks are not considered distinct:
-
Step-by-step explanation:
a : < 1 and < 2
b : < 1 and < 3
the deffinitions!
Solution:
Two trains are moving in opposite direction with Speed 40 kmph and 60 kmph. Make train B stationary and then take the Speed of train A relative to the train B. So relative Speed of train A = 40 + 60 = 100 kmph. Before it crashes into the stationary train B it has to travel a Distance of 200 m which it will do in (0.2/100 ) hours. During this duration, the average Speed of bird has been 10 kmph i.e. before the crash total Distance covered by the bird = 0.2 * 10/100 km = 20 meters.
Hope it helps
The value of x is 150. I subtracted 180-30 to get 150.
<u>Answer:</u>
The correct answer for this is: rhombus.
<u>Step-by-step explanation:</u>
The name of a polygon that has four congruent sides with the angles measuring 60°, 120°, 60° and 120° is rhombus.
According to the properties of a rhombus, the opposite angles are equal and opposite sides are parallel.
However, the adjacent angles of rhombus are supplementary which means that they add up to 180°.
For example:
60° + 120° = 180°
