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An irrational number is a real number that cannot be expressed as a ratio of integers, like a fraction. Irrational numbers, when written as decimal numbers, do not end, or repeat.

An irrational number can be two things. It can be a number that doesn't terminate and doesn't repeat (for example, pi) or it can be a rational number divided by 0, which would be undefined. 

thank you, i was having troubles

me? Im hot?      

We can use the tangent here

tan (52)  =  H  / 62     where H is the wall height......rearrange as

H  = 62 * tan(52)  ≈  79.4 ft.

Here's a pic  ......angle DCB  is the depression angle

understandable

Alot of people are surprised by web2.0calc, Lol

DONT FEEL INSECURE ABOUT YOUR CALCULATOR BOYS AND GIRLS

Lol 

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If x + 15  = 19 , then x  = 4

So.....x^3-x^2+16x^-1    evaluates to

(4)^3  - (4)^2  + 16/4  =

64  - 16  +  4  =

52

x^2  - 4x  -  21   = 0    factor

(x - 7) ( x + 3)  = 0

Setting each factor and solving fo x, we have that x  =7  or x  = -3

So  a^2+b^2+a+b  =    7^2 + (-3)^2  + 7  - 3   =   62

Thanks to hectictar for catching my error on the second part....!!!!!

thats how I roll

what does that mean

Lol nice guest you got us

JK 

Notta

a no that is grose

your hot

Why dont I find that surprising.

when you move an object on the grid

I'm sure you can

YOU JUST GOTTA BELIEVE IN YOURSELF! :D

Y O U   J U S T   G O T T A 

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II            III    II                        IIIII                      II                        IIII         IIII      II

IIIIIIIIIIII         IIIIIIIII                 IIIII              III     IIIIIIIIIIIII               IIII    IIII         IIIIIIIIIII

II         II        II                         III               III     II                            III  III           II

IIIIIIIIIIIII        IIIIIIIIIIIIIII            IIIIIIIIIIII      III     IIIIIIIIIIIIIIIII               IIII             IIIIIIIIIIIIIII

thank you

<3 thanks ive been stuck on that problem since kindergarten

it is 10 

First press the 2nd button in the top left, then press "atan"

Also, you can type in " atan(  ) ," " arctan(  ) ," or " tan^-1(  ) " into the bar.