Anyone remember these questions from the math b regents today?

Question

I wanna see if i got the same answers as everyone else.

There was a multiple choice question about someone paying off 1 third of the debt of 46000000000 or something like that. For the answer i think i put: 3.28 X 10^12

Another multiple choice about proofs where it said something like arc AB is congruent to arc CD. For the answer i just put line AB must be congruent to line CD

For the log question at the end, i got x=4

Did i get these right? If anyone else remembers another question, post em here!!!

Answer 1

i also got x = 4.

not sure if thats right thoe ; alot of people got 11.

i didnt no at all how to do the dept one. but i put the same answer as u except 10 ^ 8

n yea i got cd is is congruent to like ab too =]

Answer 2

You're right for the two first questions... 11 was the right answer and only answer (4 did not check, as already stated).

Also... I'm surprised you didn't mention question 28 with the streets... I got 8... i think that's the right answer, however, i'm not certain

Answer 3

The first question was 2/3rds of 4920000000000 which was 3.28x10^12 so you're right.

You're right again with AB must be congruent to CD because they are both chords which cut off the same amount of the circle.

The log question you got wrong. The correct answer was 11. Here's my work:

The orginal was log(base3)((x^2)-4)-log(base3)(x+2)=2

---> then log(base3)(((x-2)(x+2))/(x+2))=2

---> then log(base3)(x-2)=2

---> then it was 3^2=x-2

---> then 9+2=x

---> and finally 11=x.

That's how I solved it and I only got 11, which I'm sure about. Also: in the check 11 works, but 4 doesn't.

If you have any more questions I'll be happy to help.

I'm sure you did fine though.