Mathematics - 8 August 2007

My sister begins Algebra I in a few weeks, and she wants to be ready. What are some basic skills I should review with her before the start of the course?

2007-08-08 07:20:21 · 4 answers · asked by the_bloody_grinch 3

According to Encarta, Russia’s total population in 2007 was estimated at 141,377,750 with a 5.8% growth. Below you will found what the estimated population will be in 2008.

Y= 141,377,750 * 1.058 ^1 =

2007-08-08 07:10:03 · 3 answers · asked by DEE H 1

suppose the polygon is closed, find its surface area given its 100 vertices in x,y ,z coordiantes? please then find the general formula for n-polygon with n given vertices?

2007-08-08 07:09:18 · 5 answers · asked by BenL 2

the question is...

(π=pi)

a bicycle wheel of diameter 26 inches is rolled through an angle of 4π radians. How far has the wheel moved along the ground?

2007-08-08 07:06:32 · 4 answers · asked by xfallingxstarx90 1

27-13(u-6)=54-(4u-24)

2007-08-08 07:02:33 · 7 answers · asked by dianajiminez 1

oki,if i get paid £5.50 an hour and work 7 hours and 50 minutes a week,how much would i get a month???? thank u.

2007-08-08 06:57:11 · 8 answers · asked by Anonymous

A triangle has a perimeter of 105 inches. The lengths of the sides of the triangle are consecutive odd integers. Find the length of the sides and then use Heron’s Formula to find the area of a triangle

2007-08-08 06:55:18 · 8 answers · asked by confused 3

i got 16 but the correct answer according the the book is 64. can someone explain how to solve this with step-by-step work?

2007-08-08 06:37:32 · 9 answers · asked by azngirlzda1 2

P=1000√t+2000 ( t+2000 both are under the sqrt)
(P) is for population

Using this equation approximate how many years it would take for the population to reach 7000. Round the nearest whole year when necessary.


I think the answer is 25 years but I need to know the step by step how to.......

2007-08-08 06:34:42 · 5 answers · asked by Anonymous

each letter stands for a one -digit number. When decoded,the first line added to the second line will yield the third line. What are the numbers?+

LETS
+WAVE
= LATER

2007-08-08 06:23:22 · 4 answers · asked by aprilmacfadden 3

2007-08-08 06:17:13 · 5 answers · asked by Anonymous

Tickets for a train excursion were $120 for a sleeping
room, $80 for a berth, and $50 for a coach seat. The total ticket sales were $8600. If there were 20 more berth tickets sold than sleeping room tickets and 3 times as many coach tickets as sleeping room tickets, how many of each type of ticket were
sold?

2007-08-08 06:14:57 · 3 answers · asked by Anonymous

Maria bought 56 stamps at the post office in 37¢ and 20¢
denominations. If she paid $18 for the stamps, how many of each denomination
did she buy?

2007-08-08 06:13:32 · 5 answers · asked by Anonymous

The base of an isosceles triangle is 3 cm less than the length of the equal sides. If the perimeter of the triangle is 36 cm, find the length of each of the sides.

2007-08-08 06:08:18 · 5 answers · asked by Anonymous

you see a pair of shorts for $34.50 and a pair of shoes for $24.99 the sale tax is 7% you have $70. Do you have to buy these item? How much do yuo have left over or short.don't tell me the answer just show me the way to get the answer

2007-08-08 05:43:07 · 5 answers · asked by Anonymous

Experimenter does a study to see if kids with large vocabulary score higher on an intelligence test than average. Which type of error is it? Can u explain me this I don’t understand. Thanks

2007-08-08 05:30:38 · 4 answers · asked by bluemoon 1

1. At most, how many lines can contain pairs of the points P, Q, and R.
A. 1
B. 2
C. 3
D. 4
E. 6

2. Which of the following statements are true?
(1) Segment XY and Segment YX are the same figure.
(2) Ray XY and ray YX are the same figure
(3) Line XY and Line YX are the same figure

A. 1 only
B. 2 only
C. 3 only
D. 1 and 3
E. 2 and 3

2007-08-08 05:07:51 · 2 answers · asked by Anthony W 2

2007-08-08 05:07:40 · 4 answers · asked by Anonymous

1.Find the real numbers x and y such that

(x+yi) (3-5i)= 34

The answer is supposed to be x=3, y=5
I didn’t get it.



2. Express in the form a+bi, the following complex numbers

[1+root of(3i)] / 2 + 2 / [1+root of(3i)]

/ means divide

The answer is supposed to be 1+0i

I didn’t get it.

Thanks a lot in Advance

2007-08-08 04:52:39 · 8 answers · asked by Mystic healer 4

2007-08-08 04:51:08 · 2 answers · asked by toshi 1

A rectangular activities room floor is to be constructed in a sports complex. The floor has vertices A(-4,-11), B(12,21), C(36,9), and D(20,-23)

The area is to be sectioned off into squares (as roughly shown here: http://i17.tinypic.com/6gwzlac.jpg ) Detemrine the coordinates of the endpoints of each dotted dividing line using calculations and determine the coordinates of the center of the floor.

2007-08-08 04:50:38 · 1 answers · asked by Anonymous

Need help in simplifying this algebra eqation...

(1-x)^2(x+1)^2(x-1)^3

2007-08-08 04:25:43 · 4 answers · asked by Bluewolf 1

3 cot^2 pi/4 + 8 sin^2 pi/6

2007-08-08 04:24:43 · 4 answers · asked by mickey 2

volume of a cone of heigh H is (pi.H^3)/12. If H increases at a constant rate of 0.2cm/s and the initial heigh is 2cm, express V in terms of t and find the rate of change of V at a time t.

2007-08-08 04:09:34 · 4 answers · asked by unquenchablethirst 2

2007-08-08 04:08:08 · 5 answers · asked by Anonymous

14\27 divide 21

2007-08-08 04:07:43 · 5 answers · asked by ivory 2004 3

4 3\5 +2 3\7 + 5 6\35

2007-08-08 04:03:23 · 9 answers · asked by Anonymous

rad = square root sign

2rad3 sin (4x) = 3

2007-08-08 04:00:07 · 11 answers · asked by mickey 2

8\21 of 3\16 of 2\5

2007-08-08 03:59:37 · 2 answers · asked by Anonymous

Hi, I need help with negative fraction exponents, for example: x -1/3(-1/3 is an exponent) Yeah I don't know what to do there so I can't finish the whole part of this math problem. So can anyone tell me what to do with negative fraction exponents??? Thanks

2007-08-08 03:54:18 · 6 answers · asked by angiepangie99 1