Answer: 26.17%
Step-by-step explanation:
Probability she scored at least 8 goals = probability that she scores 8 goals + probability that she scores 9 goals + probability that she scores 10goals.
Probability of each goal is approximated by the probability distribution formula for selection. From a larger n sample, with a varied sample r, probability is denoted by:
P(X=r) = nCr × p^r × q^n-r
Where p = probability of success = 65% = 0.65
q = 1-p = 1 - 0.65 = 0.35
n = 10
r is varied between 8, 9 and 10.
When r = 8
P(X=8) = 10C8 × 0.65^8 × 0.35² = 0.1757
When r = 9
P(X=9) = 10C9 × 0.65^9 × 0.35¹ = 0.0725
When r = 10
P(X=10) = 10C10 × 0.65^10 × 0.35^0 = 0.0135
Summation of all probabilities = 0.1757 + 0.0725 + 0.0135 = 0.2617
Probability of scoring at least 8goals = 0.2617 = 26.17%
To factor this you have to figure out what times what equal 1, and what plus what equals -5
Because you have middle number as a negative you now know that the two factoring numbers need to be negative.
You also know that the only way you can get one by multiplying is by using two ones together.
This leads you to be almost complete with your factoring.
The last thing you need to to do is figure out how the 4x^2 was created by look at 4's factors.
They are 2*2 and 4*1
With these two factors the only way you would be able to get a 5x is by 4*1
Your final factors are (4x - 1)(x - 1)
In a day there are 24 hours (obviously)...
so then you put 14/24 then you simplify this fraction to the lowest term....
divide both numbers by 2 which is 7/12...
i hope this helped :)
Answer:
c pretty certain
Step-by-step explanation:
i took test