i think the one being referenced is: AB is 5, AC is 4. if A is 50, find area of triangle. all u need to do is set up the height. and say sin50=x/5. x was 3.8. A=1/2bh, b=AC=4, therefore A=7.6-7.7 ish
iirc The question said that there were infinitely many solutions, not that they were parallel and that ax+by=2 while cx+dy=3
infinitely many solutions meaning they had to be parallel
i skipped 6, probably missed 1 or 2… idk if i should cancel or not. i know i can get an 800 on a retake… is it worth to cancel?
@ballislife223 But the answer for the line and plane being perpendicular problem was “infinitely many lines” right?
What did you guys get for the 2nd to last problem about if n is an integer and x is an integer squared. How would you prove y is an integer?
i put infinitely many for that one, it was the only one that made sense. and for the n and x squared thing, i think i put x-y=n^2, it worked for x=5 y=4 n=3. but thats probs wrong.
@MilaHika I got “A” for the second last answer. Can anyone vouch this?
Omitted 9 
and i definitely didnt get all the ones i answered right. Hoping for a 700+! That will be good for someone who wants nothing to do with math.
hey can someone explain what the questio nwas for the -1.73 one? thanks!
Can someone explain 48? The n and x squared problem. Thanks
I skipped 10. I’m really hoping that I didn’t get any wrong, then I would have a decent 770. Some of them were concepts I had never seen before, and I am currently taking AP calc and took precalc last year. I also ran out of time and didn’t get to go back to some of the ones that I wanted to. This test seemed harder than when I took it last year, but that may be because precalc was fresher in my mind then.
Did anyone get consecutive straight C’s ( 3 or 4 in a row) in the last ten questions?
@MilaHika
I plugged numbers in and it worked out.
I’m not 100% sure what was on the left side, but on the right side of the equation there was n squared.
I guess it was D?
I chose n=4 or 2
and x = 16
and y was 64 then (-> a square)
@supersuperski @MilaHika do you remember the one about -1.73? what was the question?
@rogerfedererfan1 wasn’t it the one where you had the sin and the tan and you needed to find the cos?
sin was positive, tan was negative, thus cos was negative as well
@rogerfedererfan1 @nadinem123 no the -1.73 was the one with the circle and the 30-60-90 right triangle. the -1.73 is tan120
Was not expecting that at all… Skipped 5. I did all my studying out of the barrons book on much harder concept and i havent seen some of the things that were on the test today. I also am taking ap calculus and this exam felt very hard ://
oh i think that’s what i got… you didn’t have to do anything with 2nd or 3rd quadrant right? i just plugged into my calculator and put hwat i got
@kentonpalmer I also studied with barron’s and was astonished that the test was SO different!!
It felt quite easy though