12 pi. So the equation for area is pi(r)squared so you have to set pi(r)squared equal to 36 and solve for "r". R is equal to six. After, you use "r" in the circumference formula which is 2(pi)r which would be 2(pi)6 which equals to 12pi
The ancer is 3 i worked it out
a. Let be a random variable representing the weight of a ball bearing selected at random. We're told that , so
where . This probability is approximately
b. Let be a random variable representing the weight of the -th ball that is selected, and let be the mean of these 4 weights,
The sum of normally distributed random variables is a random variable that also follows a normal distribution,
so that
Then
c. Same as (b).
Answer:
48
Step-by-step explanation:
multiply 8 by 12 to get 96, then divide by 2 to get 48
(A=b×h÷2)
Given:
The quadratic equation is:
To find:
Point that is the solution of given equation.
Solution:
We have,
The quadratic function of the above equation is:
Putting , we get
The function passes through the point (1,-4). It means (1,-4) is the solution of given equation but (1,5) is not a solution of given equation.
Therefore, the correct option is A.