Official October ACT Math Thread

marcr92 · 10-24-2009, 12:56 PM

Post all math section questions here.

eg2333 · 10-24-2009, 12:58 PM

are we allowed to discuss answers yet?

marcr92 · 10-24-2009, 01:00 PM

yes, only the college board doesn't allow this.

tfeduardo12 · 10-24-2009, 01:35 PM

Soooooo easy

rawkfist · 10-24-2009, 01:45 PM

was the sin s/t and cos tv like the answer g?

nardi925 · 10-24-2009, 01:50 PM

does anyone remember the angle one near the end...they gave you 132 degrees...the answers were 84, 86, 88, 89, and 92 i think...

Hopeful_Underdog · 10-24-2009, 01:53 PM

I think the angle's 88. I did the math and that's what I got, but I could have made a mistake along the way.

Significa · 10-24-2009, 01:53 PM

I remember putting 88.
Something along the lines of three angles being congruent (So 1 side of triangle = 44)
Then the other was was like Alternate interior angle + property of line = 48
180 - 44 - 48 = 88

marcr92 · 10-24-2009, 01:54 PM

yeah the angle was 88

ftmpooper · 10-24-2009, 01:55 PM

i said 84 and I'm pretty sure I was right.

rawkfist · 10-24-2009, 01:58 PM

its 88. does anyone remember the trig problems where it asked you what was csc theta from sin=0.4?

Significa · 10-24-2009, 01:59 PM

5/2
csc theta = 1/sintheta
1/0.4 = 5/2

eg2333 · 10-24-2009, 01:59 PM

the csc was 1/0.4 which is 5/2

charlieharper · 10-24-2009, 02:00 PM

the angle was definitely 88.

and the sqrt(s/t) + sqrt (t/s) was the last choice, which i think was s+t/sqrt(rs) i think

charlieharper · 10-24-2009, 02:01 PM

coordinates for the counterclockwise vector were (-3,2)