Mathematics - 12 June 2007

perimeter of a trapezoid is 29 inches. its nonparallel are 4 inches and 5 inches long. if the height of the trapezoid is 3 inches find its area

2007-06-12 10:12:33 · 2 answers · asked by christian g 2

I need some help factoring the question above. I am not sure how to do this. Do I break it down to the GCF first.

2007-06-12 10:09:13 · 8 answers · asked by Anonymous

please explain, i don't understand how to do it:

1. Find the exact value of the trigonmetric function [cos(x+y)]given that sinx = 3/5 and cosy = - 5/13 in quadrant 2.

2.Find the exact value of the sine, cosine, and tangent of 285 degrees.

2007-06-12 09:45:06 · 2 answers · asked by qwerty123 1

A light inextensible string AB is fixed at A and carries a particle of mass 50g at B. The particle moves in a horizontal circle of radius (square root 3)m with centre O vertically below A so that the string describes the curved surface of a cone.

If the angle between the string and the vertical is 30 degrees, find the tension in the string and the angular speed of the particle.

2007-06-12 09:39:04 · 2 answers · asked by Anonymous

2007-06-12 09:36:33 · 2 answers · asked by Anonymous

1. x squared + 3x - 70

2. x squared + 4x + 3

3. x squared + 9x + 8

4. x squared - 6x + 9

5. x squared - 2x - 24

6. x squared + 7x + 10

2007-06-12 09:35:56 · 7 answers · asked by Sophiee 4

A rectangle is inscribed in the region bounded by the x-aix, the y-axis, and the graph of x-2y-8=0. Write the area as a function of x. Then determine the domain of the function. What are the dimensions of the rectangle that will produce the maximum area?

Please explain the steps to obtain the area as a function of x as well. Thanks!

2007-06-12 09:21:48 · 5 answers · asked by Karina C. 2

2007-06-12 09:16:33 · 3 answers · asked by dimple 1

find the arc length of the graph of: y=1/3((x^2)+2)^(3/2)

2007-06-12 09:16:03 · 2 answers · asked by KoKo 1

A vaires directly as B:

If a is 6.3 when b is 70, find b when a is 5.4

if a is -5 when b is 2.5, find b when a is 6

if b is -3/5 when a is -9/10, find a when b is 1/3

2007-06-12 09:09:52 · 5 answers · asked by Elizabeth 3

Let ABC be a triangle with sides AB = 5 f, BC = 8 f, AC = 4 f and let C be the circle inscribed in ABC. Let t be a tangent to C that intersects AB and AC at the points M and N respectively. Find the perimeter of triangle AMN

2007-06-12 09:01:59 · 6 answers · asked by Anonymous

I Am Soo Stuck!
Please Help =D
a] x ² +3x-70....
b] x ² + 4x + 3
c] x ² + 9x + 8
d] x ² - 6x + 9
e] x ² - 2x - 24
f] x ² + 7x +10

2007-06-12 09:00:32 · 7 answers · asked by Anonymous

Please help me solve, but only what you can.

1. (√3+2√5)^2

2. √72b^7

3. 15-10√2-3√2+2√4

4. √96/4

5. (5√2+√3)(2√2-3√3)

2007-06-12 08:53:32 · 4 answers · asked by ~♥♥♥~ 3

I just finish Math A or Math 2 as it is known. I want to take Math 3 or B over the summer in a period of six weeks. Do you think this is a good idea why or why not?.

Keep in mind that I am an ok student in Math, I can Manage a solid B plus.

2007-06-12 08:34:37 · 6 answers · asked by Mimi 2

Which two well-known conversion laws were used in developing Einstein's famous equation, E = mc 2? Give an example of when you would use this equation.

2007-06-12 08:32:21 · 6 answers · asked by joe blow 1

Please help me with all you can, thanks. The first person to get all 5 right gets 10pts! I promise.

1. √3*√27

2. √15*√3+√15*2√5

3. 4√3+√12

4. √80x+2√45x-3√20x

5. √49x^2

2007-06-12 08:30:58 · 6 answers · asked by ~♥♥♥~ 3

if you have 15 chips of which 9 are red, 2 blue, 4 green and just 3 are taken randomly without replacement.

2007-06-12 08:24:13 · 9 answers · asked by SILVIA P 1

2007-06-12 08:18:34 · 5 answers · asked by Dani 1

find the slope if it exsists

2007-06-12 08:05:31 · 6 answers · asked by cooljay27racine 1

Write the equation of the line passing through each of the given points with the indicated
slope. Give your results in slope-intercept form, where possible.
(0,5) m= -3/5

2007-06-12 07:45:40 · 8 answers · asked by Anonymous

2007-06-12 07:39:30 · 12 answers · asked by Anonymous

Can some one explain to me how to do it? And what the correct answer was?

A box contains 3 spade cards and 7 diamond cads are chosen at random.

a.What is the probability that 2 diamond cards are chosen?
b.If 3 cards are drawn, what is the probability that is 1 spade cards?
c.What is the probability that three cards are drawn without replacement in the order of diamond, spade, and diamond?

2007-06-12 07:38:57 · 3 answers · asked by Sky C 1

determine whether the side
through the points (2, 3) and (11, 6) is perpendicular to the side through the points
(2, 3) and (-3, 18).

2007-06-12 07:34:13 · 3 answers · asked by Anonymous

Do you mean to tell me that a question like "How can Shakira shake her hips like that?" is more interesting than a question about Poincare's Conjecture?! I'm insulted!!

2007-06-12 07:32:14 · 8 answers · asked by Anonymous

I need a calculation for the hydrogen concentration (in mol litre-1) when 0.32g of nitric acid is dissolved in sufficient water to make 0.050 litres of final solution. Can I have the answer in scientific notation to an appropiate number of sig figures. I need to give reasoning for the above.
I also need the pH for this solution to the nearest whole number.

2007-06-12 07:28:04 · 3 answers · asked by R T 1

2007-06-12 07:25:32 · 5 answers · asked by delightfulldee71 1

When the suns angle of elevation is 30° the shadow of a post is 6ft longer than when the angle is 45°. Find the height of the post.

2007-06-12 07:12:26 · 13 answers · asked by Chaz 1

Can you expalin how you would simplify "square root of 20" or the "square root of 32"???

Thanx!

2007-06-12 07:11:34 · 7 answers · asked by Matt 4

how do i solve - step by step please - the following?

0.31 = 90x divided by (300 - 60x)

what is x? or rather more importantly, how do i get to the answer?

(the answer is 0.86 tho ive no idea how to get there! help!)

2007-06-12 07:10:15 · 11 answers · asked by Anonymous

lim( x^3+x^2)^1/2 sin3.14/x=0
x>0

2007-06-12 07:04:29 · 4 answers · asked by d2nice19 1