FabensMath wrote:31. If a triangle has two sides of lengths 10cm and 15cm, and the included angle between these two sides is increasing at a rate of 10degrees per hour, at what rate is the area of the triangle changing when the included angle is 60degrees? (nearest tenth) Answer: 6.5cm^2/hr
redhawk2015 wrote:53. In the expansion of , the absolute value difference of the coefficients of the 3rd and the 5th term is? Answer: 2700
I know how to do it using the binomial theorem (and Pascal's triangle), but is there a faster way to do this type of problem?
007math wrote:Does anyone think that as if Mr. White is writing these tests to be calculator driven? There are so many questions that can be solved directly on the TI-89 and so many that are repeated for which one can make a program.
I find it funny that on the Calculator test you cannot use programs but on the mathematics test you can...it seems as if it should be the other way around.
redhawk2015 wrote:Can someone tell me why the answer to #21 on 2012-B is C and not D? They both appear to be the same to me...
Mr. White from UIL Website wrote: #21. Answers C and D are equivalent, hence both are correct. I will be making the change on
answer choice D to be 4x – 5x^2, leaving answer C as the correct answer.
nsguy1350 wrote:redhawk2015 wrote:Can someone tell me why the answer to #21 on 2012-B is C and not D? They both appear to be the same to me...
I don't remember if this was the one, but I remember there were two correct answer choices for a problem, which I believe to be the one you're talking about.
It has x variables in it, right?
Users browsing this forum: No registered users and 1 guest