Answer:
0.5556 or 55.56%
Step-by-step explanation:
If the probability of getting an A in both tests, P(B), is 0.5, and the probability of getting an A in the first test, P(F), is 0.9, then the probability of getting an A on the second test, P(S) is:
Given that a student has scored an A on the first test, the probability that the student will score an A on the second test is 0.5556 or 55.56%
Answer:
127.5
Step-by-step explanation:
(2x+7)+(6x-9)=180
2x+6x+7-9 = 180
8x-2=180
8x=182
x=22.75
6x-9=
6(22.75)-9=
136.5-9=
127.5 Answer
Answer:
140-100 i don't know the other one
Answer:
210° , 330°
Step-by-step explanation:
using the sides of the 30- 60- 90 triangle
with legs 1, 
and hypotenuse 2 , then
= 30° ← related acute angle
since -
then angle is in third / fourth quadrants , then required angles are
180° + 30° = 210° ← in third quadrant
360° - 30° = 330° ← in fourth quadrant
