Answer:

Step-by-step explanation:
each circle is composed of 3 sectors
The first 3 are completely shaded representing 3 + 3 + 3 = 9 sectors
the last one has 1 sector of 3 shaded representing 1 sector
sectors shaded = 9 + 1 = 10
improper fraction is then 
Answer:
The z- score for a value of 3.99 will be 3.38.
Step-by-step explanation:
It is given that the mean of a set of data is -3.82 and its standard deviation is 2.31.
Thus, the value of the z-score=
=
=
=
=
Thus, the z- score for a value of 3.99 will be 3.38.
Answer:
12x=9+5x^{2}
12x=9+5x2
Step-by-step explanation:
Answer:
y = -1/2x + 2
Step-by-step explanation:
A perpendicular line will have a opposite reciprocal slope.
Since the line's slope is 2, the perpendicular line will have a slope of -1/2
Plug in the slope and given point into y = mx + b, and solve for b
y = mx + b
3 = -1/2(-2) + b
3 = 1 + b
2 = b
Plug in the slope and b into y = mx + b
y = -1/2x + 2
So, the equation is y = -1/2x + 2