Answer:
The probability of success is .12
The probability of failure is .88
According to the binomial theorem the probability of 3 success is
10! / (3! * 7!) * .12^3 * .88^7 = .085
Answer:
5(s+7) or (s+7)*5
Step-by-step explanation:
Read the question carefully when trying to do these problems. Whenever it states "sum" then you should automatically put the terms behind it (s and 7) together to add them together. This would look like s+7.
Next it says 5 TIMES the sum of the terms therefore you should put s+7 together in parentheses and multiply them by 5 so that you first have the sum of s and 7 in parentheses. This would then look like 5(s+7) or (s+7)*5.
Answer:
A. 6.5
Step-by-step explanation:
First we find the average 
of the 9 data:
Where n is the data number, that in this case is 9.
The formula of the standard deviation 
is:
We replace the data and find the value of the standard deviation:
We approximate the number and the solution is 6,5
Answer:
125°
Step-by-step explanation:
A triangle is 180°. You already have 2 angle measures given.
30° + 25° = 55° 180° - 55° = 125°
Angle y is an obtuse angle, an angle measure greater than 90°.
