hina_0611

A uses active voice: to recognize and treat their symptoms C uses passive voice: of getting their symptoms recognized and treated Do you think these people can recognize the symptoms themselves or someone recognizes their symptoms??? C it is

agree of effective_factor. Doubling modifies the whole sentence preceding it, not any part of that sentence. A is the best. And the question is quite good

let's bring a closer look at the structure: subject: filibuster( a device =>singular) main verb: seems The filibuster, a device that slows .... and tests..., seems more and more an anachronism in the age of telecommunications. (B) sessions and tests the endurance of everyone who is associated with it, seeming to be © sessions, tests the endurance of everyone associated with it, seems ( lack of and) (D) sessions, that tests the endurance of everyone associated with it and seems A it is (E) sessions, testing the endurance of everyone associated with it and seeming ( no main veb)

I think it should be 9. 1/2^(n/2) 2^(n/2) > 2^4 => n>8 => the smallest value of n is 9

is it 9?

Yeah, D. Sorry for not reading carefully

let me try another way to prove n^5 - n Is devisible by 30: n^5 -n = n(n-1)(n+1)( n^2 +1)= n(n-1)(n+1)(n^2 - 4 +5) = (n-2)(n-1)n(n+1)(n+2) + 5(n-1)n(n+1) product of 5 sucessive intergers must be divisible by 5,3,2 => divisible by 30 Product of 3 sucessive intergers must divisible by 3 and 2 => divisible by 6 => n^5 -n divisible by 30

totally agree with you

B it is.

Manish, Their answers are all valid???

I picked B. And plz confirm the OA whether it is B or C??

D for me. Expalnation follows the OA

A for me

1.I think here we just can use unreal condition, not real condition => if A happend, D would/could/might..." 2. "and that" is required to parelle with "that is about half a mile wide"; that here both modify the asteroid. Look at this: Scientists have identified an asteroid that is about half a mile wide and that could do damage..but would not cause..if it were to.. Just change the position of " if it were..", you will see the structure more clearly. Now I think A is absolutely wrong. C is my choise

12rk34 you did a good job!!!! Besides, I think : lead =>leads because i thnik that modifies "a cycle of layoffs" not just " layoffs".