UIL Questions

[ziqidavidli]

Okay, this one is going to be similar to my other thread in math. I'm trying to do all the questions from UIL this year, and I'll be posting questions as I go. Thanks guys.

UIL A (Part 1):

#18 What is the percent difference in the number of potatoes produced in 2006 in the United States (20 million) and in Russia (39 million)?

[How do you know which one to divide by??
ANS [unparseable or potentially dangerous latex formula]

#29 It is a square pyramid with perpendicular height 11.5 and base length 6.37. What is the volume?

ANS: [unparseable or potentially dangerous latex formula] (I got [unparseable or potentially dangerous latex formula] for some reason)

That's all for now. Thanks. :)

[B3ndythumbs]

[tracy]

David! I know the answer to these. You could ask me at school. I'm not THAT bad at calculator. I'm assuming you haven't read the manual they gave us. :P All these types of problems are worked out in the book.

[ziqidavidli]

[B3ndythumbs]

Here are some weird Q's from 06 region.

27. In a room with 300 people there were 18 left handed women. If 9% of the population are left handed, how many right handed men were in the room? ANS - 91 (INT)

For 59, it was a solid of revolution problem. It gave you the functtion y=3sin(x)+2. It told you the upper bound, but not the lower bound. Upper bound is between 3 and 4, so is the lower bound. Then it says Volume above x-z plane = Volume below x-z plane. What does that mean? Btw, you are supposed to find a.

[stupidityismygam]

[ziqidavidli]

Here are a few weirdly worded ones that I couldn't get, not sure if the answers are wrong or what. They are from the study guide for stated and geometry problems:

97H-8, P5 Find the average value of all non-negative integers, n, where [unparseable or potentially dangerous latex formula].

ANS: 2.00 (I got 6.50 somehow)

98D-28, P5 I made a cake last night. I put it in the oven at 8:22 and set the timer for 35 minutes. A toothpick came out wet, so I cooked it 8 minutes more. How long after 9 PM did the cake come out of the oven?

ANS: -20.6 (My answer was 5.00 min. Am I doing something wrong?)

Also, I'm trying to work the practice manuals, do you guys have any tips on which ones to work on to prepare for district/region/state? as I haven't been practicing calculator much, and I definitely won't have enough time to finish all 2,000 problems before then
Thanks in advance.

[Celsion]

[ziqidavidli]

[B3ndythumbs]

Practice manuals?!?! WHERE?!?! Is it 2000 geo and stated problems??

[ziqidavidli]

[Celsion]

[ziqidavidli]

[Celsion]

Also, keep in mind, you don't want to sacrifice accuracy for speed. Your cruncher time will work itself down with more practice. Good luck.

Don't increase your score too much. There needs to be less competition at region. xD Just kidding, the more competition, the more fun?

[B3ndythumbs]

Hey david your going to tams? So am I! It # how uil bans it from competing :/ I really enjoy these speed tests...

[ziqidavidli]

[stupidityismygam]

[B3ndythumbs]

[ziqidavidli]

[B3ndythumbs]

Um, I'm a fish, but I'm class of 2011. I'm still going next year. I'll just be 1 year younger than most =) I'm from Dulles. We should make it to state for something, but hopefully all subjects. I HOPE tams isnt banned from uil. i'll probably ask around when i get there.

Sorry for the late reply, by the way. didnt check this thread inna while.

[jholland]

Can anyone help with problem 05E-38 from the study list? Consider a cube that can be stretched in one direction while the square cross section decreases in such a way as to keep the volume constant. What is the length to side ratio if the final area divided by the original area of the cube equals the natural logarithm of pi?

[88bobcat]