That's great, KimLee......glad we could help.....!!!!
Cos(2x) is just a "double angle" trig function......there's nothing to "do" on a calculator, unless we were trying to evaluate the cosine for some value of 2x where x is an angle and 2x is twice the measure of that angle.......
The equilibrium price will be found where the "x's" are equal.....so.....
25p - 2625 = -3p + 875 rearrange
28p = 3500 divide both sides by 28
p = $125 ....this is the equilibrium price......
2 hr 35 min 00 sec can be written as 1hr 95min = 1hr 94min 60sec
So
1 hr 94 min 60 sec
- 1 hr 42 min 25 sec
---------------------------
52 min 35 sec
Just as thejamesmachine found !!!!
You were correct with your first sentence, MG!!!!
It IS undefined {not, 0 } ........
0,0,0,1,2,2,2,2,3,4,5,5,5,5,5 The median is 2 days
The average is
(3(0) + 1(1) + 4(2) + 1(3) + 1(4) + 5(5)) / 15 = 41/15 days
So ....... 41/15 - 2 = [41 - 30]/15 = 11/15 days
Infinity is a concept.....it has no "numerical" value........
If the bottom of the ladder is 2.25m from the wall and the ladder is 6m in length, we can use the cosine inverse to find the angle opposite the wal....we have
cos-1(2.25/6) = about 67.98°
My "odd socks" could have made it to Australia......they've been known to "walk on water"
Melody......what are you gonna' title this one in the Puzzles Thread???....."Another One That Chris Screwed Up " ????....... LOL!!!!!
