Mathematics - 4 December 2007

How many pieces of square floor tile, 1 ft on each side, would you need to buy to tile a floor that is 11'6'' by 8'?

2007-12-04 17:18:05 · 3 answers · asked by michelle r 1

2007-12-04 17:09:44 · 4 answers · asked by star 1

An electric current, I, in amps, is given by
I=cos(6 t)+sqrt(6) sin(6 t)
What is the maximum value of I?

2007-12-04 17:06:27 · 2 answers · asked by kevin n 1

i know this is kinda lame, but can anyone help me solve the problem

6 / (5i) i know it equals -1.2i
but i need it simplified in a + bi form :\

2007-12-04 17:02:20 · 2 answers · asked by gamer_buddy 3

A rancher wants to fence in an area of 400 square feet in a rectangular field using fencing material costing 1.2 dollars per foot, and then divide it in half down the middle with a partition, parallel to one side, constructed from material costing 0.5 dollars per foot.
Assuming that the partition is parallel to the side which gives the width of the field, find the dimensions of the field of the cheapest design.
What is the length?
What is the width?
What is the (total) cost of the cheapest design?

2007-12-04 17:02:03 · 2 answers · asked by Anonymous

2007-12-04 16:56:05 · 4 answers · asked by D-No 1

Find the rectangle of largest area that can be inscribed in a semicircle of diameter 55, assuming that one side of the rectangle lies on the diameter of the semicircle.
The largest possible area is______

2007-12-04 16:43:19 · 2 answers · asked by Anonymous

for example the percentage of growth of a plant

begining 6.2 cm
now 11.5

isnt it like old over new or somthing? i cant remember!

2007-12-04 16:28:23 · 5 answers · asked by Mango Muncher 6

2007-12-04 16:11:16 · 7 answers · asked by Anonymous

Write an appropriate metric unit of measure for each quantity.

1. the height of a truck
2. the capacity of a standard shampoo bottle
3. the mass of a pineapple
4. the width of a paperback book

2007-12-04 15:42:11 · 7 answers · asked by apples. 4

breifly describe how you might obtain a stratified random sample of corn ears in a field

2007-12-04 15:37:35 · 1 answers · asked by Anonymous

so confusing. pls explain if possible.

also, the sum of two numbers is 104. the larger number is 1 less then twice the smaller numbers. find the numbers.

2007-12-04 15:37:00 · 7 answers · asked by Anonymous

i am really slow when it comes to math so some help would be nice.lol.

i need help factoring this.

159 = 16t² + 5t


thanks!!

2007-12-04 15:26:54 · 11 answers · asked by lindsey 2

If you have the vectors (x=4+5t, y=5+5t, z=1-4t) and (x=4+s, y=-6+8s, z=7-3s) how could you prove that they lie in parallel planes?

2007-12-04 15:12:06 · 6 answers · asked by chris 2

theres this extra credit problem im doing and i reallllly wanna get it right but i forget what to do :( its about a triangle, the area = 35 ft squared, and i need to find the base and heigt. h=b+3. i think so far its 35=1/2(b)(b+3)

please help!

2007-12-04 15:10:52 · 6 answers · asked by kbellx37 2

explain to me how to balace this equation

2007-12-04 15:06:25 · 4 answers · asked by Anonymous

How do you multiply a square root/radical with a whole number?

For example.. What's radical two times radical three?

Thank you!

If you can, please tell me how you got your answer.

2007-12-04 15:05:42 · 5 answers · asked by Anonymous

The number of houses that can be served by a water main is directly proportional to the square of the diameter of the main. This is because the cross-sectional area of the pipe, and thus the number of liters per minute that can flow, varies directly with the square of the diameter. Suppose that the City Waterworks has a 10 cm diameter water main that can supply 50 houses.

I know that the particular equation is h=0.5d^2
I just don't know how you get that. Thank you!

2007-12-04 14:52:55 · 2 answers · asked by music9191 2

I know how to multiply radicals with radicals.

But I was wondering how you multiply a radical number with a whole number.

For example, what would radical two x radical three be?

Thanks in advance.

2007-12-04 14:51:01 · 4 answers · asked by Anonymous

Ok here is the problem...
-2, 7/8, 0.8, 2.1, 1 1/3

This is the answer I got from least to greatest/
-2, 0.8, 7/8, 1 1/3, 2.1
Is this answer right?

Next one... 0.7, -1, -5/4, 4/3, -2.3, -9/2..I haven't gotten an answer yet for that one...need help...

Next one.. 0.21, 2.3, 8/3, -0.1, -1/5, 0.2222 (forever)
Answer I got: -1/5, -0.1, 0.2222, 0.21, 2.3, 8/3 is this right?

Last one..0.3, 0.333 forever, 0.3030 forever, -0.3, -0.333 forever.
Answer I got: -0.3, 0.333, 0.3, 0.3030, 0.333.
Is this right?
Thanks so much for your time!

2007-12-04 14:48:39 · 9 answers · asked by Anonymous

2007-12-04 14:42:46 · 3 answers · asked by nightowl 2

2007-12-04 14:40:25 · 9 answers · asked by Jade B-Dub 1

How do i do this?

What polynomial has the solutions of 2, -1, and 3?

and what one has the solutions of -2, 3i?

thanks

2007-12-04 14:38:37 · 2 answers · asked by hioctane103 2

find the range of the function y=-3x+7 given the following domain: {-3,-1,1,3,5}
and
find the range of the function y=3x+5 given the following domain: {-3,-1,1,3,5}

2007-12-04 14:37:38 · 3 answers · asked by sugar 1

164cm to inches? help?

2007-12-04 14:36:38 · 8 answers · asked by LonelyHarts 2

What are the properties of CSC, COS,SEC,TAN, AND COT. Meaning whats the domain, range, continuity, symmetry, bounded,asymptote, and max/min. I know the domain for Sin is all real numbers. Any help can help!! Please helpp

2007-12-04 14:35:13 · 3 answers · asked by Livelife5002 2

My daughter is a freshman and is taking Algebra 1. She took it last year and had some problems, but understood it by the end of the course. I made her take it again this year but is very bored in class because she knows everything already. Should I try to get her into geometry for the rest of the school year or hire a tutor for geometry this year?

2007-12-04 14:31:56 · 4 answers · asked by Laura 2

A 100 N force and a 50 N force act on the same object. The angle between the forces measure 90 degrees. Find the magnitude and direction of the resultant force.

2007-12-04 14:30:57 · 1 answers · asked by SoulEaterKurizu 5

Prove:
csc^2x-1=(csc^2x)(cos^2x)
can someone show me the steps of solving this question

2007-12-04 14:30:11 · 5 answers · asked by Sunshine 2

Simplify the Square Root of 120.

Does that mean the same thing as: the Square Root of 120.
I got 10.95

Correct?

Thanks

Happy Holidays
&
Happy Hanukkah

2007-12-04 14:25:46 · 6 answers · asked by Julia 1