Answer:
80
Step-by-step explanation:
We can start of with Junior's age. Then if dad is twice as old as Junior, then we add 2 parts and get 3 parts. Then Gramps is twice as old as Dad so we add 4 parts and get 7 parts. Now we divided 140 by 7. We get 20. This is Junior's age. By looking at that, we know Dad is 40, and Gramps is 80.
Gramps is 80 years old.
Answer:
42% , 3/7 , 4/9 , 0.5
Step-by-step explanation:
4 / 9 = 0.4444444
3 / 7 = 0.4285714286
42 ÷ 100 = 0.42
The answers to the questions
Answer:
a
b
Step-by-step explanation:
From the question we are told that
The number of bootstrap samples is n = 1000
From the question we are told the confidence level is 95% , hence the level of significance is
=> 
Generally the percentage of values that must be chopped off from each tail for a 95% confidence interval is mathematically evaluated as
=>
Generally the number of the bootstrap sample that must be chopped off to produce a 95% confidence interval is
=> 
=>
First, find the midpoint of the diameter. the midpoint is the center of the circle.
[(-10+(-6)]/2=-8, [(-8+(-2)]/2=-5
so the center is at (-8, -5)
next, find the distance between the two points:
d=√[-6-(-10)]²+[-2-(-8)]²=√4²+6²=√52=2√13
half of the diameter is radius, r=half of 2√13=√13
standard equation for the circle is (x-h)²+(y-k)²=r², (h,k) being the center, r the radius
(x+8)²+(y+5)²=13 is the answer.
