by 101dalmatians » Sat Feb 16, 2013 11:58 am
I know how to do these rate questions but just get it wrong for some reason...
Four painters can paint 3 houses in 5 days. How long will it take 3 painters to paint 5 houses?
Ans. 267 hrs
||V|| is the magnitude right?
[unparseable or potentially dangerous latex formula]
How many elemts are there if [unparseable or potentially dangerous latex formula]
I got 7 elements... -3pi to 3pi
Ans. 14
Why?
Anthony, Chuck, and Karlyn are getting ready to grade their number sense tests at the TMSCA STATE MEET. Each of them is using a pen with a color of ink. They put their pens in a bag ad randomly select a pen from the bag. What is the probability that at least one of them gets their own pen?
Ans. 2/3
Oh another type of probability (kinda making this up cuz I cant find a problem like this)
There are 6 people: A, B, C, D, E, and F. They want to sit in 6 chairs. A only wants to sit next to B. C does not want to sit next to E. How many ways can these 6 people sit in those 6 chairs?
What are orthogonal vectors?
Also, where can I find all those circle/arc theorems that can get me more questions on the math test?
other than in a geometry txt book lol?
I guess this signature really doesn't matter now that I know that the forum is going down soon...