Answer:
Z-value is what we called the number of standard deviations from the mean. 62% is 8% one standard deviation to the left, or a Z-value of -1. 94 is 24% to the right of the mean, or 3 standard deviations for a z-value of three. You can look on a Z-table to find the area between -1 and 3, which is .840 or 84%
Step-by-step explanation:
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Answer:
x = 3
Step-by-step explanation:
exponential equation:
nb=a
logarithmic equation: logna=b
If you put in 8 for f(x) your exponential equation is
2x=8
Use the pattern above to change it to a log equation
8 = 2^x
log 8 = log 2^x = xlog 2
log 2^3 = 3log 2 = xlog 2
x = 3
Answer:
13
Step-by-step explanation:
there is a rule that says that if you add any 2 sides, it should be more than the third. 9+21 is greater than 13. 21+13 is greater than 9. 13 is the only number which if you add 9 to it it will be greater than 21. 12 will equal 21, but it still wont work.
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Answer:
Answer is 105 in^2
Step-by-step explanation: Area of rectangle= length X breadth
= 8X12
=96in^ 2
Area of triangle= 1/2 X base X height
= 1/2 X 3 X 6
= 9 in^2
Area of irregular pentagon = area of triangle + area of rectangle
= 96+9
=105 in ^2
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