Answer:
A) 0.23
Step-by-step explanation:
There are 9 black-haired students, out of 40 students.
9
40
= 0.23
The answer would be A
if you add the students that have only black hair and all the students together and put it as a fraction of black hair over total students, you get 9/41. you divide that and you get 0.219 and rounding you get 0.22 and the closest answer is A.
73%
A line that passes (2, 0) and (-6, 3) has slope:
S1 = (-6 -2)/(3 - 0) = -4/3
Another line that is perpendicular with above line has slope:
S2 = -1/S1 = -1/(-4/3) = 3/4
=> Option B is correct
Hope this helps
:)
