Mathematics - 17 December 2007

[Selected]: All categories ➔ Science & Mathematics ➔ Mathematics

3 ⤊

A train travels 1 mile in 3 minutes, 20 seconds. At this rate, how many miles will the train travel in 1 hour?

2007-12-17 00:31:01 · 8 answers · asked by derick b 1

8 ⤊

is pieequal to 360 or is it equal to 180??

1. pie=360 0r 120???
2. proof (cos x)'= -sin x

2007-12-17 00:26:56 · 9 answers · asked by Jackline W 1

0 ⤊

how did this happen?? TRIGNOMETRY HELP?

tan20 = cot 70
sec 22.3 = csc 67.7
sin 1 = cos 99
cos(4x) = sin (90-4x)
cot n = tan(90 - n)

the answers are the one on the rigth... how did they get these answers?? pls help it my exams tomorrow

2007-12-17 00:07:10 · 4 answers · asked by Anonymous

Questions asked on 17 December 2007:

Showing 181 to 183 of 183 questions

Questions asked on other days: