A) 0.9803; 0.4803
B) 32
We calculate the z-score for this problem by using the formula:
Using our formula, we have:
Using a z-table (http://www.z-table.com) we see that the area to the left of, less than, this score is 0.9803.
To find the probability it is between the mean and this, we subtract the probability associated with the mean (0.5) from this:
0.9803 - 0.5 = 0.4803.
To find B, we first find the z-score for this. Using a z-table (http://www.z-table.com) we see that the closest z-score would be 2.33. We then set up our equation as
Multiplying both sides by 0.85 we have
2.33(0.85) = 0.35√n
1.9805 = 0.35√n
Divide both sides by 0.35:
1.9805/0.35 = √n
Square both sides:
(1.9805/0.35)² = n
32 ≈ n
we are given
Whenever we are given 'c' unit to left side
we can replace x as x+c
Here , it is shifted left side by one unit
so, we can replace x as x+1
so, we get
now, we can simplify it
...........Answer
Answer:
x=1/2, y=0
Step-by-step explanation:
-2x+y=-1
1-4x+y=-1
-4x+y=-2
-2x=-1, x=1/2
-2(1/2)+y=-1, y=0
Its a whole to part ratio
Yes because 5×2 is 10. I really hope that helps