Mathematics - 21 November 2007

a)Find the parametric equations for the line through the point P = (4, -4, 1) that is perpendicular to the plane 3x + 1y - 4z = 1.
t = 0
x=
y=
z=
B)At what point Q does this line intersect the yz-plane?

2007-11-21 11:59:56 · 3 answers · asked by timz11 1

What one digit number can represent G, H, E, and F in these number sentences

H + H = G
E x H = E
G + F = G

I think that F is 0 but thats as far as I got. I have a feeling that G is an even number and H is half of that even number. I mostly need help with finding E. If i am wrong please correct me.

2007-11-21 11:51:30 · 19 answers · asked by Anonymous

okk
if the percent is 5 1/4
well then what is the fraction and the decimal????

2007-11-21 11:47:12 · 5 answers · asked by Anonymous

I am horrible with percents and i can not remember how to do them xD lol. so if anyone knows that would be great.thanks. :)

2007-11-21 11:44:48 · 34 answers · asked by poison_inke 1

2007-11-21 11:41:59 · 5 answers · asked by Anonymous

the measure of the vertex angle of an isosceles triangle is 76 degrees. find the measure of the base angle?

how would you do this?

also help with this equation?

solve for x: 2/5x - 7= -3


please and thanks!

2007-11-21 10:51:03 · 1 answers · asked by nala 4

Ive been trying forever and I cant get the answer. If anyone knows how to work this out, please feel free to help out. Also, Please explain how you did it so can understand how to do it. Thanks!

If Jack and Jill each flip a coin three times, what is the probability they will get the same number of heads?

2007-11-21 10:44:12 · 1 answers · asked by Richard 1

A rancher wants to fence in an area of 3,200,000 square feet in a rectangular field and then divide it in half with a fence down the middle parallel to one side. What is the shortest length of fence that the rancher can use?

2007-11-21 10:42:20 · 4 answers · asked by joe j 2

2007-11-21 10:41:47 · 5 answers · asked by bbygurl09 1

2007-11-21 10:39:37 · 3 answers · asked by timz11 1

Which of the following is not true of an isosceles triangle?

A. It has a base that is opposite a vertex angle.

B. The measure of a base angle and the measure of its vertex angle can never be equal.

C. The sides opposite its base angles are congruent.

D. The angles opposite its legs are congruent.

2007-11-21 10:38:32 · 3 answers · asked by x j 1

2007-11-21 10:35:17 · 8 answers · asked by Anonymous

x-2y=1
x^2+y^2=29

without a calculator i really cannot do this totally and find x and y. I found y=-0.4 plus or minus SQRT(-544) which is impossible atleast i thought.

Any ideas, i would usually get these straight away but really cannot today. This is in an AS level C1 exam from May 2005, so no calculator and it obv can be done, using the knowledge available to people at that point in the AS level course.

2007-11-21 10:31:22 · 10 answers · asked by Anonymous

If you cannot answer that question, then I would be satisfied with just the antiderivative of (sin x)^2

2007-11-21 10:17:30 · 5 answers · asked by B.B. 3

x/((x+1)(x+3))+(x+12)/(x^2-9). EXpress it as a single fraction in its simplest form. show all working

2007-11-21 10:11:22 · 5 answers · asked by pearls3212 4

A poster is to contain 120 square cm of printed matter, with margins of 5.5 cm each top and bottom and 1.5 on each of the sides. Find the minimal cost of the poster if it is to be made of material costing 18 cents per square cm.
The minimal cost in dollars is_______???

2007-11-21 10:11:05 · 2 answers · asked by joe j 2

1+1=
seriously.......help?

2007-11-21 10:10:09 · 11 answers · asked by laffy-taffy 3

This is the assignment.
Measure the height of your computer monitor to the nearest tenth of a centimeter or sixteenth of an inch. Measure the width of your monitor as well. Use the Pythagorean Theorem to find the length of the diagonal of your monitor. How do I measure it the the sixteenth of an inch? And how would I apply the Pythagorean Theorem to this?

I found the height which is 14 inches
The width is 15.5 inches

2007-11-21 09:57:10 · 5 answers · asked by cupnnas2002 3

both numbers 2 are exponents

2007-11-21 09:41:41 · 3 answers · asked by Anonymous

okk
if the percent is 5 1/4 well then what is the fraction and the decimal
and if u would please show me how to work this out

thanks

2007-11-21 09:41:40 · 7 answers · asked by Anonymous

How would you express this quadratic expression x^2-(2√3+1)x+2√3 in factored form using the quadratic formula?

The answer is (x-2√3)(x-1). Could anyone show me the process work?

2007-11-21 09:35:37 · 5 answers · asked by Adrift 2

Abbie is an interior designer who has been asked to find an oriental rug for a new corporate office. As a rule, the rug should cover 1/2 of the total floor area with a uniform width surrouding the rug. If the dimensions of the room are 12 feet by 16 feet, find the dimensions of the rug that Abbie should look for.


I'm having so much trouble with this problem, I did it like 10x times and kept on getting different answers! Please explain it step by step if possible thanks!

2007-11-21 09:34:20 · 6 answers · asked by CLUELESS! 1

find the area of the figure and the figure look likes a straight rectangle and from the left side some space is cutted and the rectangle has three demensions and one is missed

2007-11-21 09:31:46 · 2 answers · asked by Anonymous

The volume of a cube-shaped room is found by the formula A = s3 and if the volume of a room is 1728 ft^3, what is the length of each side?

a 11FT^3
B. 12 ft^3
C. 144 ft^3
D. 576 ft^3

2007-11-21 09:20:39 · 9 answers · asked by lailani l 1

2007-11-21 09:17:37 · 14 answers · asked by Anonymous

h(a)


answer= 2a^2-3

2007-11-21 09:16:27 · 6 answers · asked by Anonymous

I used l'hopital's rule on this, but the derivatives just keep getting bigger and messier. I asked this question earlier today. No one solved it, but someone reminded me that the definition of e is e= lim (1+1/n)^n as n-->∞.. I don't know if this helps b/c I'm not sure how to get the 5 out from within the exponent.

2007-11-21 09:16:06 · 2 answers · asked by RogerDodger 1

I have a graphic calculator (TI-83 plus) and just recently, I found out that the sin button doesn't work. You could press it and all, but it doesn't give the correct answer. For example; 1sin(90) should equal to 1, but I get 0.8939966636. I tried reseting the memory, but it still doesn't work. Please help me, I'm going to have a test, and I need it to work!!!

2007-11-21 09:15:18 · 8 answers · asked by mikey_dude2 2

q/12 - (q-2)/4

In other words: q over 12 minus (q-2) over 4

LCD = 12

I got as far as -2q+6 / 12

The answer in the book is -q+3 / 6 - how do I simplify the above to get there?

Thanks!

2007-11-21 09:06:42 · 5 answers · asked by sbsurfr78 1

1. Write the equation 4x-y=3 in slope-intercept form.

A. y = -4x-3

B. y = -4x+3

C. y = 4x-3

D. y = 4x+3


2. The graph of x=3 can be described as

A. a vertical line through the point (3,0)

B. a vertical line through the point (0,3)

C. a horizontal line through the point (3,0)

D. a horizontal line through the point (0,3)

2007-11-21 08:59:09 · 7 answers · asked by Anonymous