Answer:
(4,-4)
Step-by-step explanation:
Just plot it or like I did it like this
Since moving right or left is X axis, just add 5 to -1 becuase its ont he X axis
Then for the bottom and up, thats Y so subtract that to the Y axis so 2-6=-4
4,-4
4/15=x/75 (Multiply the numerator and the denominator of the fraction on the left hand side of the equation by 5)
20/75=x/75
x=20.
You can set them equal to each other so -3x+4=4x-10 and then you add 3x and 10 on both sides and get7x=14 and then divided both sides by 7 and get x = 2 and check by plugging in and you get -2 for y on both so solution is x=2
Hello!
The mean is 86 and the standard deviation is 3
You see how many deviations are between 86 and 89
86 + 3 = 89
From the median to the first deviation is where 34.1% of the results fall
Convert the percent to a decimal
34.1% = 0.341
Multiply this by the amount of test taken
200*0.341 = 68.2
The answer is B)68
Hope this helps!