June 1 2013 Math Thread

<p>Just throwing around some answers.
20 stacked cups was 48.
The last gridin question with the digits of n was 122
The one with the circle with two diameters was I. only
The last one on the 20 minute section with the triangles was 17
The one before it with the a + b/2 = square root of ab was options II. and III. I believe, a = 0 and a>0
The one with f g h and it asked you for a value of g(5) you could've put any integer between 25 and 28 or 29 I believe
The one with the volume of the sphere inside a cylinder was 2/3
The one with the vitamin c was 320
The one where you have an equation and it asks you for r of (r,s) when the graph intersects the y axis (answer is 0 because it's the x coordinate when it intersects the y axis)
How many quadratic functions with same x intercepts: more than 3
Which age could not be possible: 65
Median number of puppies: 2
Chef question with salads: 80
what is y in terms of x: 3x
the one with the symbol and 360/1//2 = 720</p>

<p>I got all the same except 113 for the last grid in. Oops:/</p>

<p>Which was experimental?</p>

<p>Yea vitamin C was 320… 960/3 is 320</p>

<p>Yeah I messed up the last gridin nvm lol</p>

<p>What was the given info for the stacked cups problem?</p>

<p>I hope experimental was 6 because I failed that one. I left 5 blank</p>

<p>What was the one with the two quadratic equations graphed? Asking how many graphs could have the same x-intercepts</p>

<p>i put more than 3 for the one with two quadratic equations, if you multiply the same quadratic equation with a different coefficient you’ll get a different graph with the same x intercepts every time.</p>

<p>the quadratic equation one was more than three
vitamin C was 320 (im pretty sure, it was 230 + 90 or something like that) </p>

<p>the repeating n numbers (1001, 1002, 1003) was 122</p>

<p>the highest temperature is 64 lowest is 42, which equation captures all the possible temperatures?
/t-42/<22
/t-64/<22
/t-53/<11
any one had this problem? it might be a field test problem?</p>

<p>None. I don’t think it’s possible to have more than two</p>

<p>I said none as well.</p>

<p>The stacked was one stack of 5 cups that was 18 inches and another of 3 cups that was 14 inches, so by subtracting the two you realize each edge is 2 inches and then the first cup is 10 inches, and it asks you for the height of a stack of 20 cups so 10 + 19*2 = 10 + 38 = 48</p>

<p>There was a question where I answered none, but I dont remember right now.</p>

<p>The quadratic one with the x intercepts was more then 3, think about it</p>

<p>quadratic equation (x-2)(x+3) has same intercepts as 2(x-2)(x+3) and 4(x-2)(x+3)</p>

<p>asian your question was experimental</p>

<p>which section was the experimental?</p>

<p>@asiankid1996
That was an experimental section.
Also are y’all sure the function was more than three?</p>

<p>I put more than three… AKA infinity?? I don’t know if I misread the problem but that seemed like the answer to me. Weird.</p>

<p>the person who sat next to me was a USAMO finalist, and he put more than three as well</p>

<p>In response to this problem:
“The one before it with the a + b/2 = square root of ab was options II. and III. I believe, a = 0 and a>0”</p>

<p>I thought it was only a>0? If a=0, then the square root of ab would be 0, but (a+b)/2 would have to be more than 0, because b can’t equal 0.</p>

<p>i didn’t have @asiankid1996’s problem even though i had 4 math sections…
@choo14 i agree, i put only a>0 for that question</p>