I am so lost, I really need help getting started. Any help would be great.
How do I name 2 coterminal angles of -2pi/5 (one positive and one negative in pi radians) ?
How do I find csc (-154.3 degrees) ?
How do I find the length of arc intercepted by central angle of 45 degrees in a circle with diameter of 6 inches?
How do I convert 7pi/15 into degrees?
2007-01-14 08:46:35 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
How do I name 2 coterminal angles of -2pi/5 (one positive and one negative in pi radians) ?
The positive angle woud be 8pi/5 because you must start on the initial side which is the x-axis ann go CCW 85/5 to get to -2pi/5
The negative angle would be -2Pi/5 -2pi = -12pi/5 because you must start at the initial side and go all the CW all the way around and the go another -5pi/2 to get to -5pi/2.
How do I find csc (-154.3 degrees) ?
csc(-154.3) = 1/sin(-154.3) = -2.30596
How do I find the length of arc intercepted by central angle of 45 degrees in a circle with diameter of 6 inches?
length arc = r* angle in radians
r = d/2 = 6/2 = 3 inches
45 degrees = pi/180 *45 = pi/4 radians
Threfore arc length = 3pi/4 inches
How do I convert 7pi/15 into degrees?
Multiply by 180/pi
7pi/15*180/pi = 84 degrees
2007-01-14 09:24:09 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋
I'd have to just say no, I mean, if a person can't take hairspray or a bottle of shampoo on board these days I would have to think that a metallic object would not be allowed either. Grrrr! (((Go8tm))) Dangit! I used all my brains cells in the last question, I am clueless! Yeah, I know, big surprise, lol! : / Let me take yet another guess, is it lead from a pencil? Lol, this little pencil is looking at me in this box talking about "Oops! It looks like you have 4 misspelling(s). HA! No I don't,..do I? Question,...Can it reflect anything like light or whatever?
2016-03-28 21:36:19 · answer #2 · answered by Anonymous · 0⤊ 0⤋
csc (cosec) = 1/sin(-154.3 deg.)
length or arc = 45/360 * pi * 6
7pi/15 * [360 / (2*pi)] degrees
sorry .... don't know bout the first one
2007-01-14 08:54:20 · answer #3 · answered by LoneWolf 3 · 0⤊ 0⤋
for the last one I think you just multiply 7pi/15 by 180/pi. the pi cancels and you get 84 degrees
2007-01-14 09:00:19 · answer #4 · answered by metalgod84 2 · 0⤊ 0⤋
-154.3 C = -245.74F = 118.85K
2007-01-14 08:53:48 · answer #5 · answered by Anonymous · 0⤊ 0⤋