Answer:
try mathematics its an app
Answer:
33.3% probability that both children are girls, if we know that the family has at least one daughter named Ann.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The family has two children.
The sample space, that is, the genders of the children may be divided in the following way, in which b means boy and g means girl.
b - b
b - g
g - b
g - g
We know that they have at least one girl. So the sample space is:
b - g
g - b
g - g
What is the probability that both children are girls, if we know that the family has at least one daughter named Ann?
Desired outcomes:
Both children being girls, so
g - g
1 desired outcome
Total outcomes
b - g
g - b
g - g
3 total outcomes
Probability
1/3 = 0.333
33.3% probability that both children are girls, if we know that the family has at least one daughter named Ann.
The number of ways to elect a Chair and a Vice Chair is 156.
<h3><u>Amount calculation</u></h3>
Given that the Board of directories has 13 members, to determine how many ways are there to elect a Chair and a Vice-Chair, the following calculation must be made:
As the rule does not affect, because in the two years that have elapsed a different election will be held, the number of ways to elect a Chair and a Vice Chair is 156.
Learn more about amount calculation in brainly.com/question/27258844
Answer:
The area of rectangular surfaces of the prism is 12 square centimeter
Step-by-step explanation:
Given the sides of the triangle containing the right angle are 4cm and 3 cm
These two sides are two adjacent sides of rectangle
Thus, the area of rectangular surface is
4 cm *3 cm
12 square centimeter
The area of rectangular surfaces of the prism is 12 square centimeter
Answer:
C
Step-by-step explanation:
its c because if we input the numbers into the slope formula y2 - y1 over x2 - x1 it equals -6 - 0 over 6 - 5