April 4 ACT ------- Math

Test Preparation ACT Preparation
21

<p>it’s always 34,
nuff said</p>

22

<p>What was the one about distance from the houses? </p>

<p>I got like 218 or something. It was a lot bigger than the others. I think I might have done the formula wrong… :(</p>

23

<p>can’t remember but I did the Pythagorean theorem and multiplied by 10</p>

24

<p>do you mean the distance from the two towns? </p>

<p>I think i got Sqrt 3200 for that… or 56ish?</p>

25

<p>Oh what the hell was the clock one? No one had any idea how to do it. I put 105 or something… I might have had 100. I don’t know. What the hell was that even supposed to be? It’s stuff like that that made this math really difficult.</p>

26

<p>what clock one? the distance the minute hand traveled?</p>

<p>that one was 105 because the radius was 5 and so diameter is 10pi, since it went from 2:10 to 5:30, the minute hand went around 3 times completely, which is 30pi, and then 1/3 around (20 minutes). so the answer was 30pi+10/3 pi =approx 105</p>

27

<p>That very one. I made a circle, used arcs, made a cartesian plane… got nothing.</p>

28

<p>It was 105.
You had to find the circumference and multiply it by 3.
Then you find the length of the arc between the two minute hands w/ s=r(theta)
r=5 and the answer comes out to be like 104.472357928375 or something like that.</p>

29

<p>you were thinking to hard</p>

30

<p>MathLord lol…you are no longer a Math lord lol</p>

31

<p>For the projectile going into the sky, everyone got 30 + 20sqrt3 + 20sqrt2, right? Or something like that. It was the three part answer (D), which I got by dividing the figure into 3 triangles.</p>

32

<p>thats what i got</p>

33

<p>Oh, well I got it right. The MathLord lives on!</p>

34

<p>Yeah, I’m pretty damn sure that it’s right.</p>

35

<p>yea it was the long last one</p>

36

<p>ugh i got that tanx= -7/24 wrong! i read it and i thought it said that the angle was between 90 and 180 degrees and i kept thinking, how can a right triangle have two angles that are 90 degrees or greater? then my friend told me how it was referring to the coordinate grid!..and i also got the last problem wrong with the cube inscribed in the sphere asking for radius NOT diameter! BULL!</p>

37

<p>yeah i put the diameter on the last problem also : (</p>

38

<p>wat was the answer to the very last problem??</p>

<p>…i believe i got 2 radical 2</p>

39

<p>???v</p>

40

<p>wat was the answer to the square inscribed in a cube??</p>