All Answers

+130511

Jessica added 120 to one-third of a number for a result of 200. what is the number

So we have

120 + (1/3)N = 200 subtract 120 from both sides

(1/3)N = 80 multiply both sides by 3

N = 240

CPhillDec 12, 2014

+270

Good one :)

Phil

flflvm97Dec 12, 2014

+130511

+10

The equation of the circle is just x^2 + y^2 = 1

When x = .75, then y = √(1 - .75^2) = √(1 - (3/4)^2) = √(1 - 9/16) = √(7 / 16) = √7 / 4

So, the coordinates of R are (.75, √7 / 4) = (3/4 , √7/4 )

CPhillDec 12, 2014

+625

1.75 divided by 5 is 0.35

TayJayDec 12, 2014

#11

It's true. In some scary bedtime stories for children there do exist cannibalapples. They'll first eat up to 10 apples for dinner, then for dessert they go hunting ....

for children who have been naughty!!

GuestDec 12, 2014

+118723

Selena is not totally new are you Selena :)

Selena, these are snark questions.

People ask because they are bored and because they want to get the attention of answerers.

They find this quite entertaining.

If I see them before people answer I usually delete them. I don't mind people have fun with them if they want but zegroes and Brittany are right. There are an awful lot of them and they totally lack originality :)

MelodyDec 12, 2014

+130511

(5c - 2c)(d + 4) simplify

3c (d + 4) distribute the 3c over the terms in the parentheses

3cd + 12c

CPhillDec 12, 2014

But students who like maths think it looks like FUN!!!

GuestDec 12, 2014

To calculate the square root of 8 you use the square root button labelled $$\textcolor[rgb]{0,0,1}{\mathbf{\sqrt x}}$$

Too easy!

There are ways to work it out if you don't have a calculator. One of those ways resembles a wierd long-division procedure, but you would probably think it looks too complicated.

GuestDec 12, 2014

Tu connais l'histoire des mecs du departement de la guerre psychologique, morts en depression, parce qu'ils voulaient destabiliser un homme plus intelligent qu'eux?

GuestDec 12, 2014

-18n + 21m

GuestDec 12, 2014

+625

yes, I have

TayJayDec 12, 2014

If you first define a function f as

$${f}{\left({\mathtt{x}}\right)} = {\mathtt{3}}{\mathtt{\,\times\,}}{{\mathtt{x}}}^{{\mathtt{2}}}{\mathtt{\,-\,}}{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}$$

then for any particular x the function f(x) has a value and you can write things such as

f(2) + f(0) - 4 = 14

GuestDec 12, 2014