Answer:
-4/5.
Step-by-step explanation: You just need to do 4/5 times -1/1 and anything you multiply by one, the result is the number that was multiplied by 1. Since there is a negative in front of 1, the answer is -4/5.
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:
Slope Is 1/6
Step-by-step explanation:
That's the answer
Answer:
it is ethern y or z
Step-by-step explanation:
you have to solve it to find out