Mathematics - 28 September 2006

In a class of 50 students, 18 take Chorus, 26 take Band, and 2 take both Chorus and Band. How many students in the class are not enrolled in either Chorus or Band?

The answer is 16: chorus, 24 band, and 2 neither. but the total is 42. but before, there was 18 chorus and 26 band. That's 44 people. What happened to the 2 people??????

i am so confused.

2006-09-28 17:12:48 · 5 answers · asked by Anonymous

Find a parametrization of the straight line segment which connects the point (-5, 2, 7) with the point (4, 5, -3). Substitution of t=0 should resolve to point (-5, 2, 7). Substitution of t=1 should resolve to point (4, 5, 6). Use t as the parameter or independent variable.

2006-09-28 17:08:32 · 4 answers · asked by Shane W 1

How do you subtract binary using two's complement method ie; 1111111-111=? without converting to our system and back?

2006-09-28 17:03:36 · 5 answers · asked by lipiggy425 1

Does anyone know how many angles there are in a hexagon?

2006-09-28 16:58:21 · 11 answers · asked by Anonymous

is there an exponent of 20? if so please answer....
thanx

2006-09-28 16:46:16 · 7 answers · asked by •Me• 3

2006-09-28 16:40:43 · 4 answers · asked by airborne 1

I have tried already to do it myself, with absolutely NO results =( Desperate for an answer now...thanks!

2006-09-28 16:40:23 · 3 answers · asked by Obsidian A 2

2006-09-28 16:40:13 · 2 answers · asked by Betenix 2

...to mix over in order to obtain inference for the first two moments of a generic exponential family distribution?

2006-09-28 16:39:33 · 2 answers · asked by language is a virus 6

Solve for the equation.

-x + 6 - 5x = 14 - 2r

2(2x + 3) = -6(x + 9)

7 - (-4t) = 4t - 14 - 21t

and 1 more

-3/4x + 5 = 1/4x - 3

Thx

2006-09-28 16:32:11 · 13 answers · asked by kevin 2

Quiro and Jen are running in opposite directions around a 400 m track. Quiro runs at 3 meters per second and Jen runs at 5 meters per second. After meeting for their 6th time, how far will they be from the start line.

Show your work please.

2006-09-28 16:29:46 · 7 answers · asked by thrila_in_manilla 2

if p is a prime, please explain why all elements in Z/pZ have multiplicative inverse?

2006-09-28 16:24:41 · 1 answers · asked by David F 2

solve the systems of equations for u, v, and w...
18u + 96v + 24w= 87
19u - 52v - 3w = 52
-64u - 29v +60w= 32

2006-09-28 15:22:55 · 6 answers · asked by Anonymous

ok i know this is easy but i need some refreshing. if i buy 3.5 yards of fabric for 7.52 bucks, how much is it per yard rounded to the nearest cent?

2006-09-28 15:21:34 · 24 answers · asked by cool person 2

Given a circle transcribed in a triangle, prove that area of triangle= sr, where 2s=periminter of triangle and r=raidus of circle, the triangle is equilat

2006-09-28 15:14:40 · 4 answers · asked by Macarro 2

How would I graph y = sin1/2x ? What would be on my x and y axis? And where would the points go? And if you don't mind, how did you get your answer? Please help, thanks.

2006-09-28 15:09:51 · 3 answers · asked by yeppperz 1

project i need help i cant find if u know it please tell me

2006-09-28 15:03:37 · 6 answers · asked by Anonymous 2

project

2006-09-28 15:02:12 · 13 answers · asked by Anonymous 2

x^5-x^3... and how would I go about factoring it?

x^3 (x^2)... that's what I would have done, or rather, did do... that's wrong, isn't it?

ALSO, what would a problem like this:

Solve for x:
(SQRT 18x-5) = x+4

what would that be called? I have a book that can explain to me every type of problem, I just don't know what to look it up under, thanks for all the help, I really appreciate it!

2006-09-28 14:44:08 · 7 answers · asked by Anonymous

2006-09-28 14:32:33 · 3 answers · asked by Jac 1

Tripling the greater of two consecutaive even intergers give the same result as subtracting 10 from the lesser even integer. What are the intergers?

2006-09-28 14:23:25 · 5 answers · asked by Anonymous

2006-09-28 14:15:27 · 7 answers · asked by lanxxelot 1

Hi, could someone plz explain that to me?

2006-09-28 14:13:32 · 5 answers · asked by 2 days after my B day :) 2

I've already got the coordinates of the two points, and I can figure out the slope. What next? How do I find the y-intercept?

2006-09-28 14:07:03 · 6 answers · asked by 2 days after my B day :) 2

2006-09-28 14:04:33 · 9 answers · asked by Anonymous

2006-09-28 14:02:09 · 6 answers · asked by Le Thanh N 1

If you have thge differential equation (dy/dx)=x + y, with initial condition Y(0)=1, how do you find the exact solution?

I can find the approximation using Euler's Method, but how do you solve that differential to solve the initial-value problem exactly?

2006-09-28 13:52:31 · 2 answers · asked by Mimi 2

I mean use the number 8 eight times with only + and give the result 1000

2006-09-28 13:36:51 · 5 answers · asked by handsome man 1

(Not my homework. Just for fun.) There are 5 questions. There are a combination of 6th-8th grade math. Good Luck!
1) 5<10x
2) 4+(8•4) = 9x (What does X equal)
3) 5(5•1)•(8+1)= ?? (Order of Operations, not Distrbiutive Property)
4) 9 to the power of 5
5) -3(15-30) + (-58•2) = ??

2006-09-28 13:26:56 · 9 answers · asked by crazy8tiger 4

football requires 1 min on the stitching machine.a soccer ball requires 4 min on the stitching machine. how many of each type of ball can be produced each hour. (equations be in algabraic form.)

2006-09-28 13:25:38 · 5 answers · asked by saira 1