Mathematics - 10 July 2007

2x + 1 + 2x + 3 +2x + 5 = 207
Thanks!

2007-07-10 05:58:15 · 14 answers · asked by here's looking at you, kid 2

2007-07-10 05:55:06 · 7 answers · asked by sheila t 1

factor completely with respect to the integers.

x^4+12x^3+4x^2+48x

2007-07-10 05:50:25 · 3 answers · asked by Anonymous

when observed from a point P on the same horizontal level as the base, the angle of elevation of a spire is 39.6 degree and, when observed from a point 27.3 m above P, the angle of elevation is 30.9. find the height of the spire

2007-07-10 05:32:04 · 3 answers · asked by zainab b 1

factor completely with respect to the integers.

3x^2-24x+48

2007-07-10 05:21:21 · 5 answers · asked by Anonymous

i want to take the natural log of (2e^a)
ie: ln|2e^a|

what happens to the 2??
thanks.

2007-07-10 05:11:06 · 6 answers · asked by smb8586 1

(abc)base10 is a three digit number , with non-zero digits a,b and c, such that the following conditions are satisfied

(i)a
(ii)a!+b!+c!=(abc)base10

Find the value of (axbxc)^b


how to solve it ?

2007-07-10 05:10:05 · 3 answers · asked by calculus 1

f(x) = 3x^2 - 2x.......................... f(a+1)

2007-07-10 05:02:56 · 2 answers · asked by Marcela M 1

Use the ac test to determine which of the following trinomials can be factored. Find the values of m and n for each trinomial that can be factored:

x^2 + 2x - 15

x^2 - 3x + 7

2007-07-10 05:02:27 · 4 answers · asked by casper5 3

The portfolio contains shares of 1,000,000,000
companies each initially worth $1.

Each day every share either gains or loses 1% of its
value with 50-50 probability, wrt previous day.
What is expected value of the portfolio after 1000 days?

2007-07-10 04:51:02 · 3 answers · asked by Alexander 6

2007-07-10 04:40:02 · 8 answers · asked by scott98922 2

k^2 -k -20 = (k)^2 + (4 +-5)k + (4)(5)= (k+4) (k+5)

2007-07-10 04:31:10 · 6 answers · asked by Anonymous

Why is the number "seven" pronounced with two syllables?!

2007-07-10 04:21:04 · 16 answers · asked by Lola 2

I can't remember - if the error is divisible by 9, then it is a transposition error?? There were a couple others too. If anyone could help, I'd appreciate it.

2007-07-10 04:19:09 · 7 answers · asked by Jen 3

1 / x + 1/y is equal to what ??

2007-07-10 04:17:07 · 9 answers · asked by Marcela M 1

Please help me with this problem...

f(x) = 4x^2 - x + 3 ......... find f(-2)

2007-07-10 04:11:26 · 5 answers · asked by Marcela M 1

Theorem: If L is algebraic over M, and M is algebraic over K, then L is algebraic over K
Proof: Pick x in L. Then since L is algebraic over M, there exist m_0, m_1,...,m_n in M such that
m_n*x^n+m_(n-1)*x^(n-1)+
...+m_1*x+m_0=0.
Since this is a polynomial in K(m_0, m_1,...,m_n), immediately we have that x is algebraic over K(m_0, m_1,...,m_n). Thus
[K(m_0, m_1,...,m_n,x):K(m_0, m_1,...,m_n)] [K(m_0, m_1,...,m_n):K] Hence
[K(m_0, m_1,...,m_n,x):K]=
[K(m_0, m_1,...,m_n,x):K(m_0, m_1,...,m_n)]
*[K(m_0, m_1,...,m_n):K] So K(m_0, m_1,...,m_n,x) is a finite extension of K, hence K(m_0, m_1,...,m_n,x) is algebraic over K. This implies x is algebraic over K. Since x was an arbitrary element of L, it follows that L is algebraic over K.

2007-07-10 03:57:38 · 2 answers · asked by Anonymous

i need to know the subjects like trigonometry ect.

2007-07-10 03:22:11 · 8 answers · asked by Anonymous

2007-07-10 03:07:53 · 7 answers · asked by sri ranjani 1

Find all positive values for k for which each of the following can be factored.
I need help getting to this answer. I am not sure which formula should I use to solve it. I am not looking for just an answer but more the proper way to solve it

2007-07-10 03:02:04 · 5 answers · asked by Anonymous

2007-07-10 02:53:34 · 3 answers · asked by ? 2

which calculator is best for these courses...i heard that a TI-84 Plus is very good but i would like to know if there are better calculators that have a lot of features such as graphing that is required for these courses. thank you in advance

2007-07-10 02:49:19 · 4 answers · asked by roydel s 1

n(A)={1,2,3,4,8}
n(B)={5,6,7,2,3}
n(C)={2,6,9,10}
U={1,2,3,4,5,6,7,8,9,10}
Question:

n(AuB)=?
n(AuC)=?
n(AuBuC)=?
n(BuC)=?

*n means cardinality
( ) means of
(A) the set name

Please answer this question

2007-07-10 02:36:37 · 4 answers · asked by Fonso Rocks 1

a) 144
b) 128
c) 425
can you please let me know how do the breakdown

2007-07-10 02:36:02 · 7 answers · asked by caz 1

I've been solving a math problem about complex number then suddenly I stopped at [1.116 (cos 306.54 + isin 306.54)] [4+4i]

I don't know how to continue on whether changing
[1.116 (cos 306.54 + isin 306.54)] in rectangular form then perform the operation or would it be [4+4i] to be transformed to its polar/trigonometric form then multiply the terms the usual way on how we multiply complex number in its trigonometric form. I also needed the logic behind it. Thanks!

2007-07-10 02:25:13 · 5 answers · asked by Kresnik 2

1.)A rectangular garden is to be fenced off with 100ft. of fencing material.

a.) Let x feet be the length of the garden; express the number of square feet in the area of the garden as a function of x

b.) What is the Domain of the resulting function?

2007-07-10 02:18:42 · 3 answers · asked by squall_cloud 1

A statistic teacher wanted to see whether there is a significant difference in the ages between day students and night students. A random sample of 35 students is selected from each group. The data are given below. Test the claim that there is no difference in age between the two groups. Use alpha ewual to 0.05.

Day Students:
22 24 24 23 19 19 23 22 18 21 21 18 18 25 29 24 23 22 22 21 20 20 20 27 17 19 18 21 23 26 30 25 21 25

Evening Students
18 23 25 23 21 21 23 24 27 31 24 20 20 23 19 25 24 27 23 20 20 21 25 24 23 28 20 19 23 24 20 27 21 29 30

2007-07-10 01:27:10 · 2 answers · asked by heffie130 1

2007-07-10 01:24:29 · 21 answers · asked by mojo jojo 1

The ratio of mango trees to guava trees to avocado trees in an orchard is 5:2:8. If there are 1,245 trees in the orchard. how many avocado trees are there?

2007-07-10 01:16:03 · 9 answers · asked by Anonymous

for studying math?

2007-07-10 01:13:13 · 11 answers · asked by Anonymous