The factored expression would look like this : 3(x+8)(x-8)
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)
Answer:
Step-by-step explanation:
<h3><u>TO SOLVE:</u></h3>
With exponent rule.
<h3><u>SOLUTIONS:</u></h3>
First, use exponent rule.
<u><em>EXPONENT RULE:</em></u>
<u><em /></u>
Solve.
Add the numbers from left to right.
So, the final answer is x¹².
Answer:
2/3, 2/3 per minute
Step-by-step explanation:
The measure of angle D to the nearest tenth of a degree is 47 degrees
<h3>Application of SOH CAH TOA</h3>
This theorem is used to determine the measure of sides and angles of a triangle.
According to the theorem
tan theta = opp/adj = 1.055
theta = arctan(1.055)
theta = 46.53 degrees
Hence the measure of angle D to the nearest tenth of a degree is 47 degrees
Learn more on SOH CAH TOA here: brainly.com/question/20734777
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