Answer:
-x-28
Step-by-step explanation:
2x^2 -3x-28
then -3x -2x^2 is -x and then add on -28
Answer:
wow this your first Q
Step-by-step explanation:
Answer:
The mean of the test is 65
Step-by-step explanation:
Let the mean be x and SD be y
3 SD BELOW the mean means that we are taking away 3 SD FROM the mean
Mathematically, we have that as;
x - 3y = 41 •••••(i)
73 is 1 SD above mean
Mathematically;
x + y = 73 ••••••••(ii)
So let us solve both equations simultaneously
Simply multiply equation ii by 3 then add to i
x - 3y = 41
3x + 3y =219
4x = 41 + 219
4x = 260
x = 260/4
x = 65
Answer:
Step-by-step explanation:
I Guess.
Answer:
The answer to this is 12850
Step-by-step explanation:
<h2>Also
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<h3><u><em>thank you</em></u></h3>
