All Answers 358087 Answers

Melody , im only the odd one out mostly!lol!But now its night out here too!and Dragon , dont worry , i am set to take my position back from you!lol!

Is your question:  How do you divide faction that are written in scientific notation?

Basically, divide the numbers, and subtract the exponents:

Examples:

   (2.3 x 10^8) ÷ (5.6 x 10^3)  =  (2.3 ÷ 5.6) x (10^8 ÷ 10^3)  =  0.42 x 10^5  =  4.2 x 10^4

   (3.5 x 10^7) ÷ (1.7 x 10^-4)  =  (3.5 ÷ 1.7) x (10^7 ÷ 10^-4)  =  2.1 x 10^11

   (1.5 x 10^-8) ÷ (7.5 x 10^-9)  =  (1.5 ÷ 7.5) x (10^-8 ÷ 10^-9)  =  0.2 x 10^1  =  2

Remember:  divide the numbers; subtract the exponents.

What is the question?

If you need to factor the expression:  2x² - xy  =  x(2x - y)

Additive Inverse Property

The answer is yes

sin²θ(1 + cot²θ)  =  1

Since 1 + cot²θ = csc²θ:

sin²θ·csc²θ  =  1

I am confused. I am not sure which answer to pick.

I'm don't quite understand the question; so someone else may give a better answer ...

But, this might help:

If you are solving an inequality that requires multiplication or division:

1) If you multiply or divide both sides by a positive number, keep the direction of the inequality the same.

    Examples:       2x > 12                                            x/5 < 3

                            x > 6   (divide by 2)                            x < 15         (multiply by 5)

2) If you multiply or divide both sides by a negative number, switch the direction of the inequality.

    Examples:       -2x > 12                                            -x/5 < 3

                            x <  -6   (divide by -2)                           x > -15         (multiply by -5)

Split 190 lb into 5 parts, so 1 part = 190/5 = 38.  

Since the 190lb must be 4 parts cement and 1 part gravel there must be 38 lb gravel.

.

sinθ / (1 - cos²θ)

Since   sin²θ + cos²θ  =  1

--->    sin²θ  =  1 - cos²θ

So:  sinθ / (1 - cos²θ)  =  sinθ / sin²θ  =  1 / sinθ  =  cscθ

Trig is easier if you can remember the Pythagorean Identity in its three forms:

     sin²θ + cos²θ  =  1      sin²θ  =  1 - cos²θ          cos²θ  =  1 - sin²θ    

Also, there are two more that derive from the above:

     1 + tan²θ = sec²θ          1 + cot²θ + csc²θ

If  11x>3 then just divide both sides by 11 to find the condition for x.

x>3/11

.

Just divide 14.5 by 0.5.  You can do this using a calculator.

Alternatively, note that dividing by 0.5 is the same thing as multiplying by 2.

.

The ratio of X to Y is simply X divided by Y or 1050/1190 = 7*17*10/(7*15*10) = 17/15  

Or, if you prefer, the ratio is 15:17

.

If |3 + a| = 9 then there are two possibilities:

1.  3 + a = 9   or a = 6

2.  -(3 + a) = 9  or -3 - a = 9  or -3 - 9 = a  or a = -12

.

Use sin^-1(0.712150) which is available as asin on many calculators.

$${\mathtt{x}} = \underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}^{\!\!\mathtt{-1}}{\left({\mathtt{0.712\: \!15}}\right)} \Rightarrow {\mathtt{x}} = {\mathtt{45.410\: \!115\: \!568\: \!651^{\circ}}}$$

.

Let the smallest integer be n.  Then the next two are n+2 and n+4, so the sum of all three is:

n + n+2 + n+4 or 3n + 6.

We are told that this is 195:

3n + 6 = 195

Subtract 6 from both sides:

3n = 189

Divide both sides by 3:

n = 189/3 = 63.

So the three numbers are 63, 65 and 67.

.

"Pork pies" is Cockney rhyming slang for "lies", as Melody said.  Like "Apples and pears" means "stairs".

People are generally stupid and there are much more stupid people and medium intelligent people.

Because of that, people that are a bit smart go well in life.

The forum was made to help, and there are many persons that have nothing to do except of posting stupid things, so to the original poster, you are not part of the persons that will go well in life ...

Use the distributive property to simplify:  2(s - 5t)  =  2(s) - 2(5t)  =  2s - 10t

7 + 2s - 5t

If you start with mg sin(A) = umg cos(A)

and divide both sides by mg, you get  sin(A)  = ucos(A)

Divide both sides by cos(A) to get  tan(A) = u

If you enter 19° for A:  u = tan(19) -->  u = 0.34

At least, that's the math; I'm not so sure about the physics.

 what is 21

P(d)=10^(1.5d)                 so we have

1,000,000 = 10^(1.5d)      we can simplify this problem by writing 1,000,000 as 10^6

So we have

10^6 = 10^(1.5d)             and since we have equal bases, we can solve for the exponents

6 = 1.5d                           divide both sides by 1.5

4 = d

So it will take 4 days to achieve 1,000,000 views

P=a+4b+3c   to solve for a,  just subtract 4b and 3c from both sides....this gives....

P-4b-3c = a

The first "-" was supposed to be a dash......I can see how that is confusing....I'll edit that !!!

Thanks for pointing it out, Melody !!!