Answer:
6xy
Step-by-step explanation:
(2x) × (3y)
=(2×3) × (x×y)
=6×xy
=6xy
The expected completion time is μ = 40 weeks.
The random variable, X = 38 weeks (the probable time)
If the standard deviation is σ, then the z-score is z = (x - μ)/σ.
Let us test the given standard deviations.
When σ=1,
z = (38-40)/1 = -2
From standard tables,
P(x<=38) = P(z<=-2) = 0.0228 =2.3%
When σ=2,
z = (38*40)/2 = -1
P(x<=38) = P(z<=-1) = 0.1587 = 15.9%
When σ=4,
z = (38-40)/4 = -0.5
P(x<=38) = P(z<=-0.5) = 0.3085 = 30.9%
Answers:
z=1 => 2.3%
z=2 => 16% (approx)
z=4 => 31% (approx)
The answer is x= 3.666 or 3 2/3
Answer:
So we have this equation:
r/10 + 4 = 5
FIrst, we can substract 4 in both sides
r/10 + 4 - 4 = 5 - 4
r/10 = 1
Now, we can multiply both sides per 10:
r/10 * 10 = 1 * 10
r = 10
And we know that r = 10, and that's the result of the equation.
