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divide both sides by 0.8

You need to do this by algebraic long division.

LOL, Anonymous  !!!

anti log(-2.9826) = 10^(-2.9826)  = 0.0010408784089173

That is great fl  

$${\frac{{\mathtt{1}}}{{\mathtt{2}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{3}}}{{\mathtt{4}}}} = {\frac{{\mathtt{5}}}{{\mathtt{4}}}} = {\mathtt{1.25}}$$

Soak them in tepid water for a couple of hours. Don't use hot water or their colors will run.

7(cos330+ i sin330) =

7( √3/2 - 1/2i) =

[ 7√3 - 7i ] / 2 =

(7/2)√3 - (7/2) i

I don't know what you mean.  

I think that it is base 10 too

5log(5)*(2v+4)-4=-9

5log(5)*(2v+4)=-5

log(5)*(2v+4)=-1

(2v+4)=-1/log(5)

2v=-1/log(5)-4

v=[-1/log(5)-4]/2

$${\frac{\left({\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{log}_{10}\left({\mathtt{5}}\right)}}{\mathtt{\,-\,}}{\mathtt{4}}\right)}{{\mathtt{2}}}} = -{\mathtt{2.715\: \!338\: \!279\: \!036\: \!696\: \!4}}$$

Actually looking at the numbers Gino's interpretation is probably correct.

The question shoulld not have had the * sign in it :)

|-3| - |4| - 9.4 =

3 - 4 - 9.4  =

-1 - 9.4  =

-10.4

(x/(2-x))^2=6/15   simplifying, we have

x^2 / ( x^2 - 4x + 4)  = 6 / 15      cross- multiply

15x^2  = 6(x^2 - 4x + 4)     divide both sides by 3

5x^2 = 2(x^2 - 4x + 4)

5x^2 = 2x^2 - 8x + 8

3x^2 + 8x - 8 = 0          divide both sides by 3

x^2 + (8/3)x - 8/3  = 0    complete the square

x^2 + (8/3)x + 16/9  = 8/3 + 16/9

(x + 4/3) ^2  = 24/9 + 16/9

(x + 4/3) ^2  = 40/9     take both roots

x + 4/3   = ±(2/3)√10

x = [ - 4 ± 2√10 ] / 3

8.4

You are very welcome here flflvm97.    

You have made a fantastic impression already.  We a very pleased that you have joined us.

Thanks.   

$$4.45\times 10^{-5} = 0.0000445$$

Basically YES

Sassini is right but it is not finished

$${\mathtt{9}}{\mathtt{\,-\,}}{\mathtt{12}}{i}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}\left[{{i}}^{{\mathtt{2}}}\right]$$ 

=   $${\mathtt{9}}{\mathtt{\,-\,}}{\mathtt{12}}{i}{\mathtt{\,-\,}}{\mathtt{4}}$$

=  $${\mathtt{5}}{\mathtt{\,-\,}}{\mathtt{12}}{i}$$

π · 34 ÷ 4 - 56  =  34π ÷ 4 - 56  =  (34π/4) - 56  =  (34/4)π - 56  =  (17/2)π - 56

(-7i)·(8i)  =  (-7·8)·(i·i)  =  (-56)·(i²)  =  (-56)·(-1)  =  56  =  56 + 0i

I think that there should be more explanation to go with this question.

80 points of 340 is about 23.5% if that is any help  :)

$${\frac{{\mathtt{80}}}{{\mathtt{340}}}}{\mathtt{\,\times\,}}{\mathtt{100}} = {\frac{{\mathtt{400}}}{{\mathtt{17}}}} = {\mathtt{23.529\: \!411\: \!764\: \!705\: \!882\: \!4}}$$

1.25 x 10^-2

If h(x)  =  -3x² + 1,

then  h'(x)  =  -6x

Thus,  h'(-2)  =  -6(-2)  =  12  <--  slope when x = -2.

We have this proportion....

 36 / 12 = x / 9    where x is the model door height

Cross-multiply

36*9 = 12 * x

324 = 12 *x    divide both sides by 12

27 = x      and that's the model height in centimeters

(2/3)(12 - 21c)

=  (2/3)(12) - (2/3)(21c)

=  8 - 14c