Answer:
He is expected to win 25% of the time
50 times
Step-by-step explanation:
If we use fair coins
The probability for one coin landing face up is 0.5
(50% of the time)
Since we need both coins landing face up, we multiply the probabilities
(0.5)*(0.5) = 0.25
(25 % of the time)
This means that
0.25 * 200 times = 50 times
Answer:
Step-by-step explanation:
What are you doing? Solving, combining, dividing,...etc?
Answer:
x=2,y=2
Step-by-step explanation:
This question is a simultaneous equation
So let's solve
3x+y=8...(1)
2x+2y=8....(2)
Multiply (1) by 2
6x+2y=16...(3)
Substrate (2) From (3)
4x=8
Let's make x the subject of formula by dividing both sides by 4
x=2
So let's substitute the value of x into (1)
3x+y=8
3(2)+y=8
6+y=8
y=8-6
y=2
Therefore x is 2,y is 2
Answer:
Step-by-step explanation:
3x - (3x) - 2 = 3x + 3x - 2 {Combine like terms}
= 6x - 2
I-100I + 3x - [-4x] = 100 + 3x + 4x
= 100 + 7x
I -100 I means absolute value of 100 = 100
C. The range is the difference of the value of the whiskers.
Remember: the range is the highest value subtract the lowest value.