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frutty [35]
3 years ago
14

the scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation of 9. A failing grade on th

e exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing​ score?
Mathematics
1 answer:
bija089 [108]3 years ago
3 0

hey! i got a failing grade! this world is so small.

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X+2y+1=0,2x-3y-12=0 solve by substitution method​
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Answer:

Step-by-step explanation:

x=-1-2y

-2-4y-3y-12=0

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y=-2

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Find The Missing Angle Measure <br>A. 34 <br>B. 90<br>C. 6<br>D. 23<br>please help me with this ​
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What are the solutions to the equation
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Answer:

(0,1) and (3,4)

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