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19 U DUMBFUCK

Expand the following:
(x + 3) (x - 4)

(x + 3) (x - 4) = (x) (x) + (x) (-4) + (3) (x) + (3) (-4):
x x + 3 x - 4 x - 4 3

x x = x^2:
x^2 + 3 x - 4 x - 4 3

-4×3 = -12:
x^2 + 3 x - 4 x + -12

3 x - 4 x = -x:
Answer: |x^2 - x - 12

you shouldn't, you need to run away forever

68.0000

Note that the sides of the larger figure are just  (32/24)  = (4/3) those of the respective sides of the smaller figure

Thus

6(4/3)  = x  - 1

24/3 = x - 1

8  = x - 1   add 1 to both sides

9 = x

Thanks, Julius...!!!!

Why not just type "pi"......???

Nope

Similar because of this logic

OJ / JM = OK / KN

And, by Euclid, whenever a segment drawn in the interior of a triangle divides the sides in the same proportion, that segment is parallel to the base

Thus  angle  OJK = angle OMN   and angle NOM = angle KOJ

So....by AA congruency.....triangle NOM is similar to triangle KOJ

3 X 2=6/2=3

True, but it's a better likeness of pi than ♦ !!!

cos^2(theta)   =  [4x] / (x - 1)^2  = 

4 [ 5 + 2sqrt(6)] / [ 4 + 2sqrt(6)] ^2  =

4 [5 + 2sqrt(6)]  / [ 2 (2 + sqrt(6) ] ^2 =

[ 5 + 2sqrt(6) ] / [ 2 + sqrt(6)]^2  =

[5 + 2sqrt(6)] / [ 4 + 4sqrt(6) + 6] =

[5 + 2sqrt(6)] / [ 10 + 4sqrt(6)] =

[5 + 2sqrt(6)] / [2 (5 + 2sqrt(6) ) ] =   1/2

And 

sin^2(theta) = 1 - cos^2(theta)  =  1 - 1/2  = 1/2

So

tan^2(theta) + cos^2(theta)  =

sin^2(theta) /cos^2(theta) + cos^2(theta)  =

[1/2] / [1/2] + 1/2  =

1 + 1/2  =

3/2         [ Correct, Guest !!! ]

I know this has question has been answered, but I wanted to show you this neat trick I use for cross multiplying: 

For Example: 8/4=x/10

For this I would use a method called the oval circle method: 

Basically you oval a diagonal with only numbers no letters and circle the remaining number. And the letter will go

as your x=. So we oval 8 and 10 and circle 4. And we make x as x=. And we plug into the formula: x=aXb/c 

So it becomes x= 8 X 10/4

x=80/4

x=20.

But I suppose it wont work for this problem, but it's extremely simple and easy way to do it.  

2^10,000 =1.9950631168807583848837421626836 x 10^3010

6x – 4 < 8  add 4 to both sides

6x < 8 + 4

6x < 12  divide both sides by 6

x < 2

a/b=8/15 

multilpy by b 

a=8b/15 

Divide by 8 

a/8=b/15 

Wrong! I have proof

Please read Melody's answer to this person here:

http://web2.0calc.com/questions/investment-3-questions

Tan(x) =sqrt[1 - cos^2(x)] / cos(x)..............(1)

If x=5+2√6 and cosΦ=2√x / x-1, find the value of tan²Φ+cos²Φ

x =9.89898....., then: cos(0) =0.70710678.........and Tan(0) =1.

Cos^2(0) + Tan^2(0) =0.70710678^2 + 1^2 =0.5 + 1 =1.5

CPhill: Please verify this. Thanks.

100

[ 3y - 8 ] / 12 = y / 5     cross-multiply

5 [3y - 8 ] = 12y      simpify

15y - 40  = 12y      add 40 to both sides. subtract 12y from both sides

3y  = 40       divide both sides by 3

y  = 40 / 3

Because his AP calculus class was over there.

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