The percent of area associated with z = 1.4 is ____%
2 answers:
Answer with explanation:
To find area associated with, z=1.4, we will take help of z table.
On the vertical axis, we will look at value at 1.4.
At,Z=1.4,Area Occupied = 91.92%
In the normal curve,at
Z=50%,that is at the point,where
Mean =Median =Mode, in the middle of curve
Area Occupied =50%
Z-value at 50% = 0.5000=50%
So,percent of area associated with z = 1.4 is
= Area on the right of mean
= 91.92 % - 50%
=41.92%
Option B
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Answer:
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x =
Right option is (D)
Step-by-step explanation:
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we can rewrite this equation in the form given as:
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or 6x² + 31x + 40 = 0
On solving this quadratic equation, we get :
x =
That means, given equation have two solutions.
Right option is (D)
Answer:
Explanation:
All the other expressions can be factorized. Let's see why:
1)
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In this case, a=m and b=1, so we can factorize as
2)
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3)
This is the difference between two square numbers, and it can be factorized as follows
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