All Answers 358150 Answers

Awesome dude thx

"to the power of" means exponent.

For example, 5 to the power of 3 means 5³, which is 5 x 5 x 5, or 125.

Im following you!!

the same name as here!

Your question is:

If somebody drove 693 miles in 11 hours, and also, drove 173.5 miles in 2 hours 45 minutes.  Then, how do i get miles they drove in 9 hours?

Total miles:   693 + 173.5 = 866.5

Total hours:  11 + 2.75 = 13.75

Put this information into a proportion:

                   866.5mil/13.75hrs = Xmil/9hrs

                   X = 866.5*9/13.75

                   X = 567.16

Answer:  In 9 hours that somebody drove 567.16 miles!

Let's be specific here.

Grand Piano weighs: Aprrox 252KG

Sun's weighs: 1.989E30 kg

Divide the Pianos weight by the sun's to see how many fit in.

$${\frac{{\mathtt{1\,989\,000\,000\,000\,000\,000\,000\,000\,000\,000}}}{{\mathtt{252}}}} = {\mathtt{7\,892\,857\,142\,857\,142\,857\,142\,857\,142.857\: \!142\: \!857\: \!142\: \!857\: \!1}}$$

Ha...This is it (Approx).

Thx for sharing

ive tried this place....dont remeber my username.......i kinda got bored with it....so left it....

oopsie ...i didnt read the question properly...just edit it!

I'm not 100% on how to do this. I'd prefer it if you'd show me.  

I like your way of teaching.

Also, I've seen something like this in my book...

Would you have to factorise to cancel out? (Or am I on the wrong track?)

The original plus 20% of the original is 750.

Let x represent the original; then 20% of the original is 20% times x  --->   0.20x

The equation becomes:

     x + 0.20x  =  720

--->   1.20x  =  720

Divide by 1.20:

--->         x  =  600

The original was 600.

A 1/3rd power is a cube root; to get rid of a cube root, cube both sides:

             a^1/3  =  3

--->   (a^1/3)³  =  (3)³

Multiply the exponents on the left side together:

--->   (a)¹  =  27

--->   a  =  27

Work to do at home

What is 7/6 - 2/3

$${\frac{{\mathtt{7}}}{{\mathtt{6}}}}{\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{3}}}} = {\frac{{\mathtt{7}}}{{\mathtt{6}}}}{\mathtt{\,-\,}}{\frac{{\mathtt{4}}}{{\mathtt{6}}}} = {\frac{{\mathtt{3}}}{{\mathtt{6}}}} = {\frac{{\mathtt{1}}}{{\mathtt{2}}}}$$

5 percent  =  5%  =  0.05

18141 x 0.05  =  907.05

I'm not sure where parentheses belong.

If the problem is:  (3x - 2)/(x - 1)  =  x/(x + 1) - (3 - 2x)/(1 - x²)

--->                     (3x - 2)/(x - 1)  =  x/(x + 1) - (3 - 2x)/[(1 - x)(1 + x)]

Multiply all the terms by (1 - x)(1 + x) and simplify:

--->                          - (3x - 2)(1 + x)  =  x(1 - x) - (3 - 2x)

--->                          -(3x² + x - 2)  =  x - x² - 3 + 2x

--->                          -3x² - x + 2  =  -x² + 3x - 3

--->                          -2x² - 4x + 5  =  0

--->                           2x² + 4x - 5  =  0

Using the quadratic formula:  x  =  (-4 ± √[4² - 4(2)(-5)] / [2(2)]   --->   x  =  ( -2  ± √14 ) / 2

I skipped many steps; any questions?

Also, I might have guessed the wrong problem ...

A lot and then a lot more 

Rewrite      5sin²(x)  =  2sin(x)     as:     5sin²(x) - 2sin(x)  =  0.

Factoring:    sin(x)[5sin(x) - 2]  =  0

So, either:    sin(x)  =  0     or    5sin(x) - 2  =  0   --->    sin(x)  =  0     or     sin(x)  =  2/5

Can you take it from here?

$${\mathtt{you}} = {\mathtt{dumbass}}$$

$${\mathtt{1\,170\,000}} = {\mathtt{1.17\times 10^{6}}}$$

www.roblox.com/My/Groups.aspx?gid=2519991