Mathematics - 9 June 2007

x^2-3x = 4x - 1
This one has me stumped. Can someone explain???

2007-06-09 05:35:45 · 6 answers · asked by Anonymous

The pendulum is 90 cm long. If it swings side to side through an arc of 20 degrees what is the area?

Please help me i am so confused and i know the formula i just need help doing the probelm so don't give me the formula help

2007-06-09 05:14:01 · 8 answers · asked by In Flames I Lay Dying 3

parallel
perpendicular
neither

2007-06-09 05:10:34 · 4 answers · asked by Anonymous

m=1/2
m=-1/2
m=2
m=-2

2007-06-09 05:09:57 · 14 answers · asked by Anonymous

A ship sails for a distance of 150 nautical miles against a current, taking a total of 10 hours. It returns to the starting point, going with the current, in 6 hours. For both trips it moves the same speed through the water.

A system of two equations can be used to find the speed of the ship and the current. Let x represent the ship's speed and y represent the speed of the current. What is the correct equation for the ship's return going with the current?

(x + y)(6) = 150

6x + 10y = 150

(x - y)(10) = 150


Using the correct system of equations, calculate the speed of the ship.

5 knots

15 knots

20 knots

25 knots

2007-06-09 04:41:44 · 4 answers · asked by queenpravato 1

of inequalities: x > or equal to 1; y > or equal to 0; x < or equal to 4-y

a. minimum: 1; maximum: 4
b. minimum: 0; maximum: 5
c. minimum: 1; maximum: 7
d. minimum: 4; maximum: 8

2007-06-09 04:40:06 · 3 answers · asked by HOPING 1

if 365 days = 7 dog yrs and there are 24 hrs in one human day how many hrs make up one day for a dog and how many days is that = to

2007-06-09 04:36:16 · 7 answers · asked by Anonymous

Two urns each contain black balls and yellow balls. Urn I contains five black balls and two yellow balls. Urn II contains six black balls and six yellow balls. A ball is drawn from each urn. What is the probability that both balls are yellow?

2007-06-09 04:36:11 · 7 answers · asked by vanessandavid 1

x^2 - square root of 5x - 1 = 0

again...sorry for the poor notation

I got square root of 5 + OR - 3/2 Let me know if it's correct

2007-06-09 04:30:49 · 6 answers · asked by Princess 2

2007-06-09 04:17:59 · 9 answers · asked by Cantthinkofanickname 1

q(2q+3) +20=2q(q-3)

is the answer 20/9?

2007-06-09 04:16:26 · 11 answers · asked by Okay.... 3

The tangent of an angle is equal to the ratio of the

hypotenuse over the adjacent side
adjacent side over the opposite side
hypotenuse over the opposite side
opposite side over the adjacent side

2007-06-09 03:54:32 · 11 answers · asked by kaylee826 1

If CG is an altitude of Triangle ABC, then _______.
CG is perpendicular to AB
CA is perpendicular to AB
G is the midpoint of AB
CG is parallel to BC
What is the equation of the line through points (-3, 2) and (-4, 5)?
y = (2/3)x - 6
y = 2x - 4
y = 2x + 2
y = -3x - 7
Given Triangle RST is similar to Triangle DEF. If m Ang E = 38, m Ang R = 43, and m Ang T = 7x + 8, then x = ?
13
14.14
4.29
15
A trapezoid of area 150 square units has one base of length 18 and height 12. Find the length of the other base C
3.5
7
3 sqrt(2)
14
Refer to triangle DEF in Figure 5, if m Ang D = 30o, m Ang E = 60o, and DF = 12, what is ME in simplest form?
2 sqrt(3)
6
6 sqrt(3)
12
A square has diagonals of length 8 cm. Find the area. ___ square cm
32
16 sqrt(2)
12
3 sqrt(2)
The radius of a Circle O is 4, if radii OA and OB form 90o angle, AB = ?
4 sqrt(2)
4
16 sqrt(2)
8
If a triangle has sides of lengths 8, 4, and 4 sqrt(3), is the triangle right?yes

2007-06-09 03:53:20 · 2 answers · asked by M.O. 1

x² + 6x + 8 = 0 (solve using the quadratic formula)

I cant figure out how to set this up, can someone please help.

2007-06-09 03:08:42 · 9 answers · asked by amy r 1

using chain rule and sum and difference rule combination i get
8x^3(2x-5)^3+3x^2(2x-5)^4
the answer is in the form of
x^2(2x-5)^3+(14x-5)
where am i going wrong?

2007-06-09 03:07:27 · 4 answers · asked by Anonymous

also if it can be simplified, please tell me how you do that also, thanks so much!!

2007-06-09 02:46:22 · 8 answers · asked by Anonymous

it asks to calculate in cm, it's height, correct to one decimal place

plz help

2007-06-09 02:03:44 · 9 answers · asked by trace 1

how can i do this

2007-06-09 01:39:41 · 7 answers · asked by Anonymous

2007-06-09 01:01:25 · 6 answers · asked by Sparky 4111 1

A regular octagon is inscribed in a circle of radius 15.8 cm. Find the perimeter of the octagon?

2007-06-09 00:25:14 · 4 answers · asked by chitown 1