Answer:
The answer is : 0.0597
Step-by-step explanation:
Population mean = μ = 80
Standard deviation = σ = 20
Sample = N = 60
σ_mean = σ/√N
= (20)/√(60) = 2.582
Now we will find z1 and z2.
z1 = {(84) - μ}/σ_mean = 
z2 = {(88) - μ}/σ_mean = 
Now probability that the sample mean will be between 84 and 88 is given by:
Prob{ (1.549) ≤ Z≤ (3.098) } = (0.9990) -(0.9393) = 0.0597
35% of 370 would be 129.5
Answer:
x=38
Step-by-step explanation:
(2x+5)=(3x-33)
2x-3x=-33-5
-x=-38
x=38
Answer:
20 miles away
Step-by-step explanation:
40*2 = 80
30*2=60
80-60=20
Answer:
One solution.
Step-by-step explanation:
We have been given an equation 
. We are asked to find the number of solutions for our given equation.
Let us solve our given equation. Upon combining like terms, we will get:
Therefore, our given equation has only one solution.
