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
Answer:
The answer is $4854.52
Step-by-step explanation:
2000(1.03)∧30=4854.52
The completely factored expression of 2x^2 + 4x + 3xy + 6y is (2x + 3y)(x + 2)
<h3>How to factor the polynomial?</h3>
The expression is given as:
2x^2 + 4x + 3xy + 6y
Group the expression into two
[2x^2 + 4x] + [3xy + 6y]
Factor out each group
2x(x + 2) + 3y(x + 2)
Factor out x + 2
(2x + 3y)(x + 2)
Hence, the completely factored expression of 2x^2 + 4x + 3xy + 6y is (2x + 3y)(x + 2)
Read more about factored expression at:
brainly.com/question/723406
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Answer:
$10
Step-by-step explanation:
Given that:
Amount earned for 0 mile = $50 (earned for signing up)
Amount earned for walking 1 mile = $60 ($50 for signing up and $10 for. Walking)
Hence, the amount earned per mile walked according to the information given is $10
Total amount earned =. Sign up fee +. Walking fee
$60 = $50 + walking fee
Walking fee = $60 - $50
Walking fee =. $10
Miles walked = 1 mile
Hence , amount earned per mile = $10
