kitty<3

Honey please, people have been asking this for ages.

Here are some of the answers; I hope they can help you out:

Hay un dígito antes del punto decimal, y el resto de los dígitos están después del punto decimal.

Luego, multiplícalo por 10 a la potencia del número de dígitos, menos uno.

Por ejemplo:

12345 en la notación científica es 1.2345 * 10^4
y 1200000 en la notación científica es 1.2 * 10^6

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(oh right, the translation:) 

There is one digit before the decimal point, and the remaining digits are after the decimal point.

Then multiply it by 10 to the power of the number of digits, minus one.

For example:

12345 in scientific notation is 1.2345 * 10 ^ 4
and 1200000 in scientific notation is 1.2 * 10 ^ 6

Hi Melody!

Actually . . . I found it online It was a pretty common math problem, and turns out there was a perfect example! 

I just drag the picture into the box (where you type up answers, like this one) and it pastes itself in:)

Generally, you can't.

However, you can change it into a fraction, if you're really into accuracy. Commom repeating decimals are usually over 3, 6, or 9. Some examples would be 1/3, 2/3, 1/6, 4/9 . . .

There is a pretty simple process to find the fraction form of a repeating decimal. Let me know if you are interested and I can explain it:)

If you mean on a number line,

Draw a line and label "5" on it.

Since 5 < a means that a is greater than 5, draw an open circle at 5 (closed circle would be for greater than/equal to)

Then shade the line to the right (greater would be going in the positive direction on a number line.)

And add in an arrow at the end to show that a goes on infinitely. 

For arccosine, click "2nd" on the calculator, then "acos"

You can also just type in "acos("

Multiply the base of the parallelogram and the height to find the area.

$${\mathtt{A}} = {\mathtt{bh}}$$

Base is the length of one side (the opposite sides of a parallelogram have the same length.)

Height is the distance of the perpendicular segment between the two opposite bases, not the slanted line.

Factor it: x² + x - 12 = 0

This equation is in the ax² + bx + c form, so c is -12

Since c is negative, you know that the factoring would have one positive x-value and one negative x-value; a positive number times a negative number would be negative.

So now you know that it will be:

(x + __ ) * (x - __ ) = 0

Now find the factors of -12 that will add/subtract to get positive 1 (since your b-value is 1x.) -3 and 4 multiply to get -12, and add to get 1

Therefore, it would be:

(x + 4) * (x - 3) = 0

So x would be the number that makes the value in the parentheses equal to 0.

-4 + 4 = 0 and 3 - 3 = 0

So x = - 4, 3

Hi Mathbug,

Anonymous correctly answered both your questions; this is how you get there:

1000x200

Multiply 1*2 = 2

Then just add in the 3 zeros from 1000 and the two zeros from 200 at the end:

= 200000

For 1000x2000, do the same thing, but since 2000 has three zeros instead of two, it would be

2000000

Slope of a line is the change in y (rise) over the change in x(run).

The formula for m, slope,  is $${\mathtt{m}} = {\frac{\left({\mathtt{y2}}{\mathtt{\,-\,}}{\mathtt{y1}}\right)}{\left({\mathtt{x2}}{\mathtt{\,-\,}}{\mathtt{x1}}\right)}}$$

So just plug in your x and y values:

m = (3 - 2) / (3 - -1)

= 1/4