Answer:
Step-by-step explanation:
Given expression is,
First equalize the denominators of the fractions,
Now combine the fraction as a single fraction,
Since, we can not solve this fraction further, this will be simplified form of the given expression.
Answer:
The perimeter of the rectangle is expressed as;
Step-by-step explanation:
Given;
area of the rectangle, A = 36 cm²
width of the rectangle, = W
Let L represent the length of the rectangle,
A = L x W
The perimeter of the rectangle is calculated as;
P = 2(L + W)
Substitute the value of L into the above equation;
Thus, the perimeter of the rectangle is expressed as
Answer:
Step-by-step explanation:
Given that the probability that a person in the United States has type B+ blood is 13%.
Since four unrelated people in the United States are selected at random, we can say that each person is independent of the other to have B+ blood group.
Let X be the number of persons who have blood group B+ in the group of 4 persons.
X is Binomial with p = 0.13
a) P(X = 4) =
b) P(x =0) =
c)
d) All having B+ is unusual since probability is very negligible