Answer:

Step-by-step explanation:
sqrt of 7-11=2i
simplify to 
then sqrt of 9=3
then we simplify again to 
hope this helps and if you don't mind please consider giving me brainliest
Answer:
1/8
Step-by-step explanation:
When three fair coins are tossed there is a chance of occuring eight combinations. Hence the probability is 1/8. Each outcome of each flip of a fair coin has a probability of 0.5.
Answer:
b i took this exam 90% sure its B
Step-by-step explanation:
B
B
B
second 1
perimeter of regular octagon is given as
= 8a
where a is side of regular octagon
so
perimeter = 8 x 20 = 160
so option c is answer
(1) 
Let us convert mixed fraction into improper fraction.

Make the denominator same.



Now convert improper into mixed fraction.

(2) 

Make the denominator same.




(3) 

Make the denominator same.




(4) 




