If the company's limit of error is at 6, then the number of balls can be anywhere from 690 + 6 and 690 - 6, or 696 and 684. Since the lowest point possible is 684 whilst the highest is 696, x must be lower than or equal to 696 and greater than or equal to 684.
The answer is A, 684 ≤ x ≤ 696
Answer:
The answer is B.
Step-by-step explanation:
x^2-5x = x + 5
(x^2-5x)( x + 5)
x^3 - 25x^2+25x^2-25x
x^3 - 25x
U = S ∪ S' = {1, 2, 3, 4, 5}
Answer:
20
Step-by-step explanation:
To solve this you have to make a system of equations.
Since the father and son's age sum up to 60, the first equation will be:
f + s = 60
Secondly, since the father's age is 5 times the age of the son 6 years ago the equation will be:
6 - (5s) = f
Now, you have to solve the first equation to let it equal to s
f + s = 60
f = 60 - s
Plug in
6 - 5s = 60 - s
+s +s
6 - 4s = 60
-6 -6
---------------------
-4s = 54
----- -----
-4 -4
s ≅ 14
14 + 6 = 20
