Standard deviation 12,16,22,23,34,44,46,47,48,64,67,73,83,89, round to nearest tenth
RideAnS [48]
Answer: 23.9
Step-by-step explanation:
1. First, you must calculate the mean, as following:

2. Now, you should substract the means obtained to every single number of the set and then square it. Add all of them:

3. The mean of this is:

4. The square root of this result is:

5. To the nearest tenth, the result is: 23.9
Answer:
Step-by-step explanation:
Where a graph intersects the x-axis is where the solutions or zeros of the quadratic are found...where y = 0.
If the points of intersection are x = -1 and x = 3, then putting those into factors gives us (x + 1)(x - 3) = 0. FOIL that out to get the quadratic.
which simplifies to

Looks like the third option there.
<span>You can write this number with digits, which would be 210,640,050. You could also write it in standard form, which would be 2.1064005 x 10^8.</span>
Y=-4x+4
-4 is the gradient
So it goes downwards
+4 is the y intercept so where it crosses the y axis
Bottom right one
Answer:
Step-by-step explanation:
Please check out the attachments for the solution :)