(12x+5)+(3x-7)
Add the coefficients 12x+3x=15x
Add the numbers 5-7=-2
The answer is 15x-2
Pretty sure it would be the 1st, 2nd, and 4th shape.
Answer:
The probability that there are more heads than tails is equal to
.
Step-by-step explanation:
Since the number of flips is an odd number, there can't be an equal number of heads and tails. In other words, there are either
- more tails than heads, or,
- more heads than tails.
Let the event that there are more heads than tails be
.
(i.e., not A) denotes that there are more tails than heads. Either one of these two cases must happen. As a result,
.
Additionally, since this coin is fair, the probability of getting a head is equal to the probability of getting a tail on each toss. That implies that (for example)
- the probability of getting 7 heads out of 15 tosses will be the same as
- the probability of getting 7 tails out of 15 tosses.
Due to this symmetry,
- the probability of getting more heads than tails (A is true) is equal to
- the probability of getting more tails than heads (A is not true.)
In other words
.
Combining the two equations:
,
.
In other words, the probability that there are more heads than tails is equal to
.
This conclusion can be verified using the cumulative probability function for binomial distributions with
as the probability of success.

.
6-6x= -24
Subtract 6 from -24 = -30
divide -30 by -6= 5
x=5
Answer:
Tom can either take 24 kicks and make 16 goals or 30 kicks and make 20 goals.
Step-by-step explanation:
Andre made 4 goals out of 6 kicks.
Tom wants to take more than 20 kicks and to make an equivalent fraction to Andre.
<u>Possibility 1:</u>
Let Tom makes 24 kicks.
To get 24, we need to multiply the denominator of Andre's fraction by 4.
So, 
Therefore, Tom can take 24 kicks and make 16 goals.
<u>Possibility 2:</u>
Let Tom makes 30 kicks.
To get 30, we need to multiply the denominator of Andre's fraction by 5.
So, 
Therefore, Tom can take 30 kicks and make 20 goals.