Answer:
Zero.
Step-by-step explanation:
The determinant of the coefficient matrix of the system is zero, since every coefficient is equal to zero.
Since the triangle is 45,45,
90 arrangement. We can use the special triangle trick. Which gives us 2,2 and square root of 2 times 2
Because the surface area is of a 2-D SHAPE to find a area of a 2-D shape is l x w
Answer:
20%
Step-by-step explanation:
3 out of 15 is the same as 3/15 = 1/5. 1/5 is the same as 20%
Answer:
The probability that 8 mice are required is 0.2428.
Step-by-step explanation:
Given : A scientist inoculates mice, one at a time, with a disease germ until he finds 3 that have contracted the disease. If the probability of contracting the disease is two sevenths.
To find : What is the probability that 8 mice are required? The probability that that 8 mice are required is nothing ?
Solution :
Applying binomial distribution,

Where, p is the probability of success 
q is the probability of failure q=1-p, 
n is total number of trials n=8
r=3
Substitute the values,




Therefore, the probability that 8 mice are required is 0.2428.