Mathematics - 4 August 2007

Q1) Estimate 1.321 x √3.4 correct to one significant figure.
Q2) Hence estimate 1.321 x 10^5 x √3.4 x 10^6 correct to one significant figure in standard form.

2007-08-04 23:12:18 · 5 answers · asked by Anonymous

1) A heavy weight boxer weighs 220 lbs. How much does he weigh in kg?

2) Ana would like to apply as a flight stewardess. The ad says minimum height for applicants is 5ft 3in. How much is this in cm?

3) Seb weighs 8.1 lbs at birth. What is the equivalent in kg?

Please use the Factor Label Method, and please include your solutions. This is due tom. so please please help!!! I'll give a rating of 5 for the best answer.

2007-08-04 22:20:15 · 6 answers · asked by A 5

2007-08-04 21:52:37 · 7 answers · asked by nestly7 1

my math teacher said that the diagonal of the face of a given cube can be solved by the formula d=s√2 then she said that the diagonal of the cube is equal to a diagonal of a face. How can i prove that she is wrong?

2007-08-04 21:30:30 · 8 answers · asked by Anonymous

How can you bring exactly 6L of water from the river in 1 trip if you only have a 4L and 9L Container?

Thank you for your workings out XOX

2007-08-04 21:20:02 · 7 answers · asked by Anonymous

x^2+2x+y^2-8y+8=0

i dont see how you turn this equation into a cricle >.< please help!

2007-08-04 21:03:09 · 3 answers · asked by iSmile 2

50% OF GIRLS AGED 16-39 and 25% of boys in the same age group watched a netball game. If 48% are male what percentage of 16-39yr olds watched the netball?

2007-08-04 20:56:43 · 1 answers · asked by Anonymous

2007-08-04 20:25:23 · 14 answers · asked by anie89 1

2007-08-04 20:22:39 · 6 answers · asked by lazybonz1974 1

16sin2x + 16cos2x = 10 find the value for x...........
that 2 is raied to the power i mean it is square.........

2007-08-04 20:08:13 · 4 answers · asked by dedchad 1

2007-08-04 19:30:43 · 1 answers · asked by Anonymous

This is an advanced calculus question, I just don't have an idea how to start with, pls help me out.

2007-08-04 19:18:36 · 2 answers · asked by HAO 1

Androids and Boods have landed on Mars. Androids have green skin and Boods have 5 arms. 87% of all Androids are Boods. 3% of all Boods are Androids. There are 13 Androids that are not Boods. How many Boods are not Androids?

Please can you explain - you probably have to be real clever to get this, I'm not that good. Thanks everyone.

2007-08-04 19:16:41 · 1 answers · asked by Anonymous

Twice a number is 4 less than a second number, while 5 times the 1st number is 3 less than twice the 2nd number. Find the two numbers.

2007-08-04 19:13:29 · 3 answers · asked by Michael Ray G 1

S1=10,000+5%S2+6.9%S3
S2=1,000+2.08%S1+3.45%S3
S3=26,090+7.29%S1+17.5%S2
S4=2,670+7.29%S1+2.5%S2+3.45%S3

2007-08-04 19:03:26 · 1 answers · asked by copesticker 1

Am I making this harder than it seems? 6.325%. Do I just times my number by .06325?

2007-08-04 18:54:56 · 10 answers · asked by ryan78963 1

2007-08-04 18:33:13 · 4 answers · asked by Anonymous

2007-08-04 18:31:03 · 1 answers · asked by Anonymous

g(x) = 2^x

WHat is the domain and how do I explain it?

2007-08-04 18:06:44 · 5 answers · asked by amber 3

Hi,

Well I'm a high school student currently. I'm going to take geometry for my 9th grade math. I was wondering if I can finish a whole year of Algebra 2 during the summer?

Any help would be appreciated.

Thank You

2007-08-04 18:01:27 · 8 answers · asked by blah 2

f(t) = 4.5e^t

I have to find the domain and explain how I got it, problem is, I can't find an example in my book.. I am stumped.

2007-08-04 17:54:56 · 5 answers · asked by amber 3

Find the exact base of a triangle with a base of square root 30 meters and a height of square root 6 meters

2007-08-04 17:23:36 · 4 answers · asked by jane 1

What is 2 + 2!!! HELP ME PLEASE OH MY GOD I'M GOING TO DIE IF I DON'T GET THIS RIGHT SOMEONE PLEASE HELP!!!!!!!!!!!!

2007-08-04 16:59:00 · 13 answers · asked by Anonymous

1. The speed of a free-falling body is directly proportional to the time elapsed. After 3 seconds, the speed is 29.4 m/sec. Find the speed after 7 seconds

2. A local publishing company has a reserved fund of P2,000,000.00. After several increases in the price of gasoline and some increase in the wages of workers, the company learns that it is losing money at the rate of P25,000.00 a week.
a. How much money would be left in the reserved fund after 4 weeks? 10 weeks?
b. I f F represents the reserved fund and t represents the weeks, write an equation stating the company's financial condition after t weeks.
c. From the equation in (c), calculate the number of weeks left before the reserved fund is drained.


thanks godbless

2007-08-04 16:44:16 · 3 answers · asked by xah8 1

1. Solve the equation: 6x + 5 = 23

2. Solve: 3(y- 7) = y+3

3. Find the domain of y=x+3 if the range is {-1,1,3,5}

4. A lake is 120 fathoms deep. use the fast that there are 6 feet in a fathom to tell the depth of the lake in feet

5. Suppose y varies inversely as x and y= 5 when x=20
find x when y=2
write an equation of the line in slope-intercept form with slope 1/3 that crosses the y-axis at (0, -2)

6. Write 7 cubed using an exponent

7. Simplify: square root 81/225

8. Find the product: -5a 2 (a 2 - 6a + 7)

9. Find the product:(6y + 5)(2y + 3)

10. Factor the polynomial s 2 + 25. if the polynomial
cannot be factored, write prime

11. Find the roots of 2x 2 - 5x + 1 = 0

12. Find the value of c to make g 2 - 18g + c s perfect
square

2007-08-04 16:34:49 · 11 answers · asked by austin 1

A two-dimensional array of elements arranged in rows and columns is a ____________.

What is _____________?

Thanks for any help guys!

2007-08-04 16:14:02 · 3 answers · asked by Triock91 1

if the line L1 passes through(4,0) and(0,7)and L2 passes to(4,-5)and(1,10) find the angle from L1-L2?

2007-08-04 16:02:25 · 3 answers · asked by JESS 1

f(x)= 1 over x-2
g(x)= 4 over x

2007-08-04 15:24:41 · 4 answers · asked by Anonymous

How do you solve...?
Sqrt = Square root ^=to the power of (exponant)

This is the problem:

Sqrt(2x+2) + Sqrt(x+2) = 1 can be rewritten as:

A. (Sqrt(2x+2))^2 + (Sqrt(x+2))^2 = 1^2
B. x^2-6x-7=-0
C. Sqrt((2x+2)(x+2))=1
D. 2x^2 + 6x +3=0

A seems right to me, just want to make sure.

Thanks.

2007-08-04 15:23:20 · 4 answers · asked by Anonymous

The force due to gravity on a man is proportional to his mass and inversely proportional to the square of the distance from the centre of the earth.
If a man weighs 90kg and the radius of the earth is 6.4 x 10^6 metres, the force acting on him is 8 x 10^-4 Newton.
What is the force acting on a man weighing 80kg when he is in a satellite 1 million metres above the surface of the earth???

2007-08-04 14:54:01 · 2 answers · asked by Anonymous