Mathematics - 6 November 2007

Is the fraction 9/11 larger than or less than the fraction 2/7?
Aso include percents for 2/7 and 9/11

2007-11-06 15:42:17 · 25 answers · asked by Dumb Giirl 1

Find a fundamental set of solution for the differential equation

2y''-10y'+6y=0

determine the general solution
and find the solution of the equation with the initial condiction y(-square root 3)=0 and y'(-square root of 3)=0

2007-11-06 15:37:05 · 1 answers · asked by cafet 1

I have the problem 2|x-7|+3>5 The answer I got was 83 is this correct? I don't think you distribute with aboslute value. Is this correct?

Thanks!

2007-11-06 15:32:14 · 6 answers · asked by Anonymous

An open box is to be made from a rectangular piece of material by cutting equal squares from each corner and turning up the sides. Find the dimensions of the box of maximum volume if the material has dimension of 2 feet by 3 feet.
answer: 5-sqrt(7)/6ft. by 1+sqrt(7)/3ft. by 4+sqrt(7)/3ft.
I have a answer, but I want to learn how to solve it. This is a calculus problem.

2007-11-06 15:26:17 · 3 answers · asked by I need help 1

Not sure how to work this problem.

a spotlight on the ground shines on a well 12 meters away. If a man 2meters tall walks from the spotlight toward the building at a speed of 1.6m/s, how fast is the length of his shadow on the building decreasing when he is 4 m away from the building?

THANKS

2007-11-06 15:16:38 · 1 answers · asked by joe 1

A man 6 feet tall walks at a rate of 5 feet per second away from a light that is 15 feet above the ground. When he is 10 feet above the ground,


a) at what rate does the tip of the shadow moving

for the tip why are you trying to find the whole length? Shouldnt you only try to find the part for the shadow?

the answer is 25/3 but i need help for explaining what the tip of the shadow means in this problem.

2007-11-06 15:14:53 · 5 answers · asked by Adam d 1

If not, what are the factors of it?

2007-11-06 14:52:25 · 11 answers · asked by Anonymous

A.Na3AsO4
B.NH4CLO4
C.CA(NO2)2
D.Fe(OH)3

2007-11-06 14:37:17 · 4 answers · asked by manny 1

2007-11-06 14:27:48 · 17 answers · asked by Star C 1

round off to nearest whole number ..... thx so much !

2007-11-06 14:24:00 · 1 answers · asked by lori gurl 1

WHEN SCHOOL ENDS AT 2:30 P.M., JACOB STARTS TO WALK HOME AT A RATE OF 3.0 MILES PER HOUR.IF HIS BROTHER LEAVES SCHOOL 5 MINUTES LATER AND WALKS AT A RATE OF 3.6 MILES PER HOUR, AT WHAT TIME WILL HE CATCH UP TO JACOB? SHOW ALL WORK PLEASE

2007-11-06 14:22:02 · 2 answers · asked by almeda_94 1

2007-11-06 14:19:44 · 5 answers · asked by greenie23510 1

Use the given velocity function and initial position to estimate the final position s(b). Round your final answer to the nearest integer.
v(t) = 31(1 − e−5t), s(0) = 0, b = 6
s(b) = ?

2007-11-06 14:10:32 · 2 answers · asked by Anonymous

2007-11-06 14:05:43 · 7 answers · asked by Anonymous

I am in need of help on an algrebra factoring problem.
81r^4-256s^4

2007-11-06 13:48:42 · 2 answers · asked by Adventurebound75 1

2007-11-06 13:45:28 · 2 answers · asked by Anonymous

f(x)=4e^(x)-7
and
f(x)=-7e^(-x+4)+4

finding the domain,range,x-intercepts,y-int.,horizantal asymptote,vertical asym.,up or down constant, and if its continuous or discrete

and how do i graph them

2007-11-06 13:45:09 · 1 answers · asked by Anonymous

The equation is y=0x+5 and the point is (-2,4) They want me to find the distance from point to line but i am not sure how to. I could care less about the answer I just want to know how to get it

2007-11-06 13:37:12 · 1 answers · asked by ~Dante's Babe~ 4

Calculus Question

2007-11-06 13:34:27 · 2 answers · asked by A4life2k4 1

PROBLEM #1

The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If V =552.0in.^3 when T=460 degrees and P = 10/lb/in.^2, what is the volume when T=11-degrees and P + 10 lb/in.^2?

NOTE: when I write ^2 that is to the power of 2.

PROBLEM #2

A car dealer advertised a big sale by stretching a string of banners from teh top of the building to the edge of the driveway. IF the building is 226 m high and the driveway is 39 m from the building, how long is the string of banners?

PROBLEM #3

Find the length of the missing side of the right triangle. Round to three decimal places, if necessary.

a=13, c=25

ANY HELP WILL BE SO SO APPRECIATED>

2007-11-06 13:30:27 · 1 answers · asked by iwishiwereanangel 3

13cm height
6.5 radius

2007-11-06 13:28:35 · 1 answers · asked by marcela5541 2

4.5in the radio of the circle
15.2 the height

2007-11-06 13:27:16 · 1 answers · asked by marcela5541 2

Help me, I don't know how to do this.
Using the values of the functions f and g given below.
x f(x)
1 3
2 5
3 1
4 2
5 3

x g(x)
1 5
2 4
3 4
4 3
5 2


Complete the given tables. How to calculate this table?
x (g。f) (x)
1 4
2 ?
3 5
4 ?
5 ?

2007-11-06 13:26:03 · 4 answers · asked by Anonymous

2007-11-06 13:25:20 · 2 answers · asked by Quagmire77 1

I have answer of this question, but I want to learn how to get the answer. This is a culculus problem.
A spherical balloon is inflated with gas at the rate of 20 cubic feet per minute. How fast is the radius is (a) 1 foot and (b) 2 feet?
Answer: (a) 5/pie as 3.14
(b) 5/4pie as 3.14

2007-11-06 13:23:26 · 2 answers · asked by Anonymous

Solve the problem. Round answers to the nearest tenth if necessary.

Two quadrilaterals (four-sided figures) are similar. The lengths of the three longest sides of the first quadrilateral are 60 ft, 40 ft, and 30 ft. The lengths of the two shortest sides of the second quadrilateral are 6 ft and 3 ft. Find the unknown lengths of the sides of these two figures.

2007-11-06 13:15:14 · 1 answers · asked by Anonymous

If 479 is a composite number, please tell me the factors.
(no decimals if you are confused)

2007-11-06 13:10:34 · 13 answers · asked by Tiffany 2

Which is a counterexample of the following conditional:
“If a number is divisible by three, then it is odd.”

1

3

6

9

2007-11-06 13:02:51 · 4 answers · asked by Anonymous

2007-11-06 12:58:08 · 1 answers · asked by jessiebabie824 2

Ok, i fully understand the formula and how to apply it, its simple actually. The only thing i do not get is how to find an end point when a mid point and 1 end point is given algebracially using the middpoint formula?

if (4,3) is the mid point and (0, -4) is the end point, what is the toehr end point?

2007-11-06 12:57:36 · 8 answers · asked by Anonymous