Mathematics - 29 November 2007

Have I done this right? y = m x + b

b = 11 1/2 x = --6 and y = 5

to graph it, do it start at 11 1/2 on the x axis and then down 1 and over 2?
thanks

2007-11-29 16:56:02 · 3 answers · asked by Boo Radley 4

Identify the open intervals on which the function is increasing or decreasing

y = x + (4/x)

2007-11-29 16:55:25 · 3 answers · asked by Anonymous

hi i want to ask how i find the exponential function of a graph when the y -int is (0,4) and a given point is (5,10)
y=k*a^x
i need to find k and a
any help is appreciated thanks!

2007-11-29 16:50:12 · 4 answers · asked by John 1

2007-11-29 16:45:11 · 2 answers · asked by Bobby S 3

Original Question:
Two sides of a particular isosceles triangle are 6 and 13 unites. What is the area of this triangle? Express your answer in simplest radical form.

2007-11-29 16:40:26 · 3 answers · asked by Bobby S 3

I need to factor out this equation completely.

x squared-21x+84=0

I know how to do it, I just can't find the factors of 84 that will add to -21. Help, please!

2007-11-29 16:33:58 · 6 answers · asked by Joe. 1

2007-11-29 16:19:56 · 12 answers · asked by rolrox98 1

2007-11-29 16:16:52 · 3 answers · asked by ruby 2

tan pi/3


any help would be appreciated. thank you! :)

2007-11-29 16:15:50 · 2 answers · asked by Anonymous

2007-11-29 16:09:42 · 3 answers · asked by Anonymous

2007-11-29 16:02:45 · 3 answers · asked by Alan G 2

2007-11-29 16:01:37 · 12 answers · asked by Anonymous

2007-11-29 15:59:06 · 4 answers · asked by alwalclif 2

2007-11-29 15:58:24 · 5 answers · asked by ghggf 1

2007-11-29 15:52:16 · 5 answers · asked by video gamer 2

2007-11-29 15:47:31 · 7 answers · asked by gigi90232 2

Solve each formula for the indicated letter. Assume that all variables represent nonnegative numbers.

1)a^2 + b^2 = c^2 [Pythagorean formula in 2 demensions]

2) w= √1/LC, for L [The square root is over (1/LC)
An electricity formula]

2007-11-29 15:42:27 · 3 answers · asked by Anonymous

du/dt = e^(3u - 14t)

initial condition: u(0) = 0

HINT:
To determine the constant of integration after you integrated both sides, DO NOT take natural logs, but rather just set u = 0 and t = 0 with u and t both still exponents. After determining the constant, then you need to take logs on both sides to solve for u.


The hint was given in a practice problem. Let me see if y'all can show me something of it.

2007-11-29 15:33:34 · 1 answers · asked by Gills 1

2007-11-29 15:20:05 · 2 answers · asked by Answer Seeker 1

I simply cannot figure out how to draw this graph without crossing at least one time. please help!

2007-11-29 15:14:15 · 1 answers · asked by Smokey M 1

29 increased by F is -2.




How would I write an equation or inequality, and solve it?





and same goes for this one:

7 is greater than or equal to the quotient of b and 16.

2007-11-29 15:09:57 · 13 answers · asked by Anonymous

2007-11-29 15:01:22 · 4 answers · asked by Answer Seeker 1

my answer is 15 0r -15

2007-11-29 15:00:33 · 7 answers · asked by thonia 1

joe has a piece of wire which is 8 and 4 ninths yards long. mike has a piece of wire wichis 25.ft 6.in. long whose piece of wire is longer and how longer

i needs an answer but most importantly the explanation

2007-11-29 14:59:31 · 4 answers · asked by VICTOR P 2

approximate the expression involving square roots to three decimals

2007-11-29 14:41:15 · 12 answers · asked by thonia 1

how u factor these: x^this means squared k! 6x^-22x+12 18+7x^-x^4
2x^-x=-3 2m^+7m=-3 x^-x-72

2007-11-29 14:40:28 · 2 answers · asked by Anonymous

A. Between what two consecutive integers do each of the following numbers like?

1. square root of 21
2. square root of 50
3. square root of 70
4. square root of 98
5. square root of 145
6. square root of 250
7. square root of 310
8. square root of 450
9. square root of 555
10. square root of 650
11. cube root of 16
12. cube root of 60
13. cube root of 200
14. fifth root of 150
15. fourth root of 175



B. Find a one-decimal place approximation for each of the following expressions:

1. square root of 10
2. square root of 18
3. square root of 30
4. square root of 37
5. square root of 50
6. cube root of 8
7. fifth root of 26
8. fourth root of 45
9. square root of 65
10. cube root of 99
11. negative square root of 20
12. negative cube of 35
13. negative fourth root of 200
14. cube root of 15
15. cube root of 30




Pls. help me pls. i need it now pls. pls. i'm begging you pls. pls. pls. very pls.

2007-11-29 14:39:44 · 2 answers · asked by Anonymous

1. At a time of the day when the shadow of a vertical pole 20 ft. high is 28 ft. long, tree nearby casts a shadow 35 ft. long. How tall is the tree?

2. The ratio of similitude (or scale factor) between two similar triangles is 3:4. If the shortest side of the smaller triangle is 21 cm, what is the lenght of the shortest side of the bigger triangle?

3. The lenghts of the sides of a triangle 8, 10, and 12. The lenght of the shorter side of a similar triangle is 12. Find the lenghts of the other two sides.

4. The lenghts of the sides of a triangle are 14, 8, and 16. Find the perimeter of a second triangle similar to it, if the lenght of the shortest side is 12.

5. The perimeter of two similar triangles are 14 and 24. The lenght of an altitude of the first is 3. Find the lenght of the corresponding altitude of the second triangle.

6. Shad is 3 ft. from a lamppost that is 12 ft. high. If Shad is 5 1/2 ft. tall, How long is Shad's shadow?

2007-11-29 14:37:54 · 5 answers · asked by Anonymous

I'm doing a math paper which requires me to find the pattern and formula for the following input/output function. Any help would be greatly appreciated.
input 2 output 1
input 3 output 2
input 4 output 4
input 5 output 8
input 6 output 16
input 7 output 48
input 8 output 80

(yes, I know the first few double, but that isn't consistent with the rest)

2007-11-29 14:37:20 · 1 answers · asked by Anonymous

math

2007-11-29 14:35:44 · 7 answers · asked by t n 1