If you're not clear on the process, these two are difficult.
Difficulty: Hard.
Difficulty: Pretty easy, although most kids would rate it a Medium.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 31, answer 32. Published 5/2.
Showing posts with label Functions. Show all posts
Showing posts with label Functions. Show all posts
Wednesday, January 16, 2013
Sunday, January 13, 2013
2013 ... 25 & 26
Today, we have a nice addition to the questions about synthetic division and complex numbers.
Difficulty: Easy, but the "three solutions must be positive" is a nice twist on this.
Difficulty: Medium, because of the time pressure ... determining the patterns is straightforward.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 25, answer 26. Published 4/29.
Difficulty: Easy, but the "three solutions must be positive" is a nice twist on this.
Difficulty: Medium, because of the time pressure ... determining the patterns is straightforward.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 25, answer 26. Published 4/29.
Thursday, January 10, 2013
2013 ... 19 & 20
Function - sequence question and a clever probability that requires close attention to the framing of the problem.
Difficulty: Medium, if only because the function makes the pattern elusive. Once you have it, it's simple.
Difficulty: Medium. I found this one tough to frame, but easy to solve. I did take too much time.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 19, answer 20.
Difficulty: Medium, if only because the function makes the pattern elusive. Once you have it, it's simple.
Difficulty: Medium. I found this one tough to frame, but easy to solve. I did take too much time.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 19, answer 20.
Friday, January 16, 2004
2004 #16 and 26
Simple algebra -- as soon as you've stated the problem with algebra.
Difficulty: easy.
Difficulty: Functions. Meh.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2004
answer 16, answer 26.
Difficulty: easy.
Difficulty: Functions. Meh.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2004
answer 16, answer 26.
Sunday, January 11, 2004
2004 #11 and 31
What percent will get this correct answer? Correct!
Difficulty: Quick. Only the reckless will get this wrong.
Difficulty: Oddly difficult.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2004
answer 11, answer 31.
Difficulty: Quick. Only the reckless will get this wrong.
Difficulty: Oddly difficult.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2004
answer 11, answer 31.
Thursday, January 1, 2004
2004 #01 and 41
Start of a new series. A nice fraction and a holy craptastic function thing. Wow!
Difficulty: Simple.
Difficulty: Relies on a bunch of work and a couple AHA! moments. Tough.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2004
answer 01, answer 41.
Difficulty: Simple.
Difficulty: Relies on a bunch of work and a couple AHA! moments. Tough.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2004
answer 01, answer 41.
Sunday, January 20, 2002
2002 #20, 21, and 22
Greatest Integer Function and Radicals in one problem? Be still my beating heart. A problem where intuition works best? Awesome. Similar triangles masquerading as a tough problem. Wow!
Difficulty: moderately difficult for students who don't see how the GIF is applied here. Of course, the resulting radicals are complicated, too.
Difficulty: Simple answer is the correct one. Proving it is an interesting discussion.
Difficulty: Again, pretty simple if they're paying attention.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 20, answer 21 and answer 22.
Difficulty: moderately difficult for students who don't see how the GIF is applied here. Of course, the resulting radicals are complicated, too.
Difficulty: Simple answer is the correct one. Proving it is an interesting discussion.
Difficulty: Again, pretty simple if they're paying attention.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 20, answer 21 and answer 22.
Saturday, January 19, 2002
2002: #19 and 25
Odd little function.
Difficulty: Moderate. How do primes get involved?
Difficulty: Combinations annoy me.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 19 and answer 25.
Sunday, January 13, 2002
2002 #13 and 29
Patterns!
Difficulty: Easier than it looks. Getting students to begin seems to be the key.
Difficulty: Patterns, again.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 13 and answer 29.
Difficulty: Easier than it looks. Getting students to begin seems to be the key.
Difficulty: Patterns, again.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 13 and answer 29.
Tuesday, January 8, 2002
2002 #8 and 34
A complex function that creates a pattern that, once understood, is beautifully simple.
Difficulty: Few students have dealt with a function of this nature.
Difficulty: To be honest, I had no clue on this one. I would have to rate it difficult because the answer method seems so esoteric to this engineer. Maybe the math majors will face-palm on my obtuseness, but I'll have to risk it.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 08 and answer 34.
Difficulty: Few students have dealt with a function of this nature.
Difficulty: To be honest, I had no clue on this one. I would have to rate it difficult because the answer method seems so esoteric to this engineer. Maybe the math majors will face-palm on my obtuseness, but I'll have to risk it.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 08 and answer 34.
Thursday, January 3, 2002
2002: #3 and 39
This group is from 2002.
Problem 3
Difficulty: Easy. About those fractions .... similar to the Harmonic Mean and to resistance in parallel if if were addition.
Problem 39
Difficulty: Fairly difficult for your students.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 03 and answer 39.
Problem 3
Difficulty: Easy. About those fractions .... similar to the Harmonic Mean and to resistance in parallel if if were addition.
Problem 39
Difficulty: Fairly difficult for your students.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest
answer 03 and answer 39.
Wednesday, January 17, 1990
1990- 35 & 36
Absolute value equations? Tasty.
Difficulty: Medium.
Difficulty: Hard.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 35, answer 36, Published 5/23.
Difficulty: Medium.
Difficulty: Hard.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 35, answer 36, Published 5/23.
Monday, January 15, 1990
1990 - 31 & 32
You'll need a good understanding of logarithms today ... and an ability to understand the weirdest function question I've ever seen.
Difficulty: Easy-Medium.
Difficulty: Medium-Hard.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 31, answer 32, Published 5/21.
Difficulty: Easy-Medium.
Difficulty: Medium-Hard.
Standard instructions for this series: No calculator allowed. Express answers in reduced form. Rationalize denominators. Radicals must be reduced. All numbers are base ten unless otherwise specified. Do not approximate radicals or π. Leave such answers as 1025π or √39, for example. Source: UVM Math Contest 2013
answer 31, answer 32, Published 5/21.
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