All Answers 358146 Answers

mmm I wonder what the calculator on the home page is for.  

The radius of a circle is 1 inch. What is the length of a 135° arc?

Well the circumference is   $$2\pi*r = 2\pi*1 = 2\pi \;\;inches$$

but that would be if you have all 360 degrees, you only have 135 degrees.  Mmm

So it must be

$$arc\;length= \frac{135}{360}*2\pi\;\;inches$$

well 54 more than 3 is 

3+54 = 57

@@ End of Day Wrap   Wed 1/4/15   Sydney, Australia   Time 9:40 pm ♪ ♫

Hello everyone,

Answer credits today were earned by Siera01, Geno3141, CPhill, MathGod1, Alan, CowgirlAMS and Annabelle. Thanks for all those great answers.

Today was a bit quiet, I wonder if that is because Easter is looming?

Interest Posts:

FTJ means "For the Juniors"

Thurs 2/4/15

FTJ means "For the Juniors"

$$\frac{3}{x}=\frac{6}{(x+1)}$$

You should notice straight of that x cannot be 0 or -1  (because you cannot divide by 0)

Now, to get rid of all the fractions, multiply both sides by x(x+1)

$$\\x(x+1)*\frac{3}{x}=\frac{6}{(x+1)}*x(x+1)\\\\
3(x+1)=6x\\\\
3x+3=6x\\\\
$subtract 3x from both sides$\\\\
3=3x\\\\
$divide both sides by 3$\\\\
x=1$$

Try watching this clip :)

https://learnzillion.com/lessons/3345-understand-the-value-of-a-digit-in-a-decimal-number

Find a rhombus and plot on dot paper so that vertices are on dots and the number of interior points is equivalent to 6.

What is the question?

The domain will be all real numbers except where the denominator is zero.

The denominator can be written as (x-2)(x-3) so this is zero when x = 2 and x = 3.

Hence the domain of this function is:   x ∈ (-∞, 2)∪(2, 3)∪(3, ∞)

.

24hours*60minutes per hour = 1440 minutes

.

$${\mathtt{7}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{{\mathtt{7}}}{\mathtt{\,\times\,}}{\mathtt{0.006}} = {\mathtt{420\,000}}$$

This can also be expressed as 4.2x10⁵

.

1/3 as a decimal is 0.33333.....  where the 3's keep going forever!

.

30.9677251344040446/1

Let X be the original price

85% of X = 87.15

0.85X=87.15

X=87.15/0.85

an=n2+1

 alguien me puede ayudar con esta exprecion algebraica. mas bien es una sucesion. No entiendo nada :)

Translation:

* means multiply

^ means to the power of :)

Well the win 11/18 games

$${\frac{{\mathtt{11}}}{{\mathtt{18}}}}{\mathtt{\,\times\,}}{\mathtt{82}} = {\frac{{\mathtt{451}}}{{\mathtt{9}}}} = {\mathtt{50.111\: \!111\: \!111\: \!111\: \!111\: \!1}}$$

$$2p^2-3p-54$$

first I would look for 2 numbers that mult to 2*-54=-108

since it mult to a negative one must be positive and the other one negative.

BUT they also have to add to -3    So the 'bigger' one will be neg and they must be close together. (3 apart.)

Now i am just going to 'play' with the factors of 108.

108=4*27 = 4*3*3*3=9*12      BINGO

-12 and +9

NOW

I will split -3p up into  -12p+9p

$$\\2p^2-3p-54\\
=2p^2-12p+9p-54\\
$now factorise in pairs$\\
=2p(p-6)+9(p-6)\\
=(2p+9)(p-6)\\$$

And that is it :)

Your question is ambiguous.  So it depends what you mean.  :/

how much % is 16 of 216

16/216  *100  percent

Cute retort cowgirl :)

Maybe press = twice

that usually works :/

It is 7*(3/1) = 21