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Nastasia [14]
2 years ago
6

What is the z-score of the value 55.2?

Mathematics
1 answer:
sergeinik [125]2 years ago
6 0
The z-score for 55.2 is 0.25.





Explanation: Using the Standard Normal Table, the area to the left of 0.25 is 0.5987, and the area to the left of 0.5 is 0.6915. As 0.6915−0.5987=0.0928, the probability that the sample mean is in between 55.2 inches and 55.4 inches is approximately 9%.
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ser-zykov [4K]

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Step-by-step explanation:

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Substituting in the coordinates of the vertex,

-4=a(4-2)(4-6)\\\\-4=-4a\\\\a=1

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2 years ago
Which of the following is not a factor of x^3 – 3x^2 – 4x + 12?
Slav-nsk [51]

Answer:

c. (x + 3)

Step-by-step explanation:

using factor theorem

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p(3) = (3)^3 - 3(3)^2 - 4(3) + 12

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therefore x-3 is a factor

b.(x + 2)

p(-2) = (-2)^3 - 3(-2)^2 - 4(-2) + 12

= -8 -12 + 8 + 12

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therefore x + 2 is a factor

c.(x + 3)

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d.(x-2)

p(2) = (2)^3 - 3(2)^2 - 4(2) + 12

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therefore x - 2 is a factor

4 0
3 years ago
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Hello,

Let's assume i the number of lines,
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u_2=4=2+u_1\\\\
u_3=7=3+u_2\\\\
u_4=11=4+u_3\\\\
u_5=16=5+u_4\\\\
...\\\\
\boxed{u_{n+1}=(n+1)+u_{n}}\\\\

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6 0
4 years ago
Solve the equation for z <br>5z-8=32<br>A. z=4<br>B. z=4.8<br>C. z=6<br>D. z=8​
nadezda [96]

Answer:

Z=8 is the answer

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
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