X=46...she need to get on 6th exam to have an average of 60
Answer:
B
Step-by-step explanation:
pls mark me brainless pls
The standard deviation is the square root of the variance
so if the variance is 100, then the standard deviation is sqrt 100 = 10
or, if u have the standard deviation of 10....then to find the variance, u square it....so the variance is 10^2 = 100
Answer:
C
Step-by-step explanation:
<h3>
Answer: x = -8</h3>
Explanation:
Both points have the same identical x coordinate, so this line is completely vertical. Vertical lines are always of the form x = k, where k is some constant.
The equation must be x = -8 since we want both x coordinates to be -8.
Side note: The slope of this line is undefined, which applies to any vertical line.