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Your answer should be 12.57
Answer:
-7
Step-by-step explanation:
To find the common difference, take the second term and subtract the first term
-2 - 5 = -7
Check by subtracting the second term from the third term
-9 - (-2) = -9+2 = -7
The common difference is -7
Answer:
The minimum IQ score will be "126".
Step-by-step explanation:
The given values are:
Mean

Standard deviation

Now,
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Answer:
16n^2+40n+25
Step-by-step explanation: