Besides posting the answers, I also included the solution to solve similar simplification of algebraic expressions questions. :)
Step-by-step explanation:
have a nice day
hope it helps
Answer:
8.D
9.A
Step-by-step explanation:
/
The proportion of students who like both building snowmen and skiing
<span>50/110 </span>
percent is 50/110 * 100 = 45%
<span>part b) </span>
Of the students who don't like building snowmen,
what is the probability of choosing a student who does not like skiing as well?
<span>There are 50 students who don't like building snowmen. </span>
There are 20 students who don't like skiing and don't like building snowmen.
<span>probability is is 20/50 = 2/5</span>
When two lines intersect and they make a 90 degrees angle between them, then those lines are said to be perpendicular to each-other and all four angles between them are 90 degrees each.
In the given diagram we can see that two lines are intersecting and angle ∠2 is marked as 90 degrees. It means these two lines are perpendicular to each other and all angles would be Right angles i.e. 90 degrees each.
Hence ∠1 ≅ ∠2 = 90°
Hence, option B is correct.