All Answers 358516 Answers

You look for a square number that goes into 320.

I see 16

$$\\\sqrt{320}=\sqrt{16}\times \sqrt 20\\\\
\sqrt{320}=4\times \sqrt {20}\\\\
\sqrt{320}=4\times\sqrt{4}\times \sqrt 5\\\\
\sqrt{320}=4\times 2\times \sqrt 5\\\\
\sqrt{320}=8 \sqrt 5\\\\$$

$${\frac{{\mathtt{1\,200}}}{{\mathtt{600}}}} = {\mathtt{2}}$$

$$x=\sqrt{256}$$

Yes it would be very difficult.  Maybe you select the book off the shelf but then read it off a kindle.  That way the selected book would never leave the shelf and you could select 4 of the same book.  You could almost recite it after reading it 4 times. 

Then your probability would be correct. :)

The up and down arrows and the bottom of the calcuator :)

2!!!!

[ (8)^1/4 ]^4/3

When you have an exponent to an exponent, multiply the exponents:  1/4 x 4/3  =  1/3:

(8)^1/3  =  2                     (The cube root of 8 is 2.)

c²  =  a² + b² - 2·a·b·cos(C)

LM²  =  KL² + KM² - 2·KL·KM·cos(K)

LM²  =  23² + 20² - 2·23·20·cos(119)

LM²  =  529 + 400 - 920·cos(119)

LM²  =  529 + 400 - 920·(-.48481)

LM²  =  529 + 400 + 446

LM²  =  1375

LM  =  √1375  =  37.1

Multiply the decimal degrees by 60 to get minutes, then multiply the decimal minutes by 60 to get seconds (round if necessary).

Example 47.864°   -->  save the 47 degrees

  Multiply .864 by 60 to get 51.84 minutes.   -->  save the 51 minutes

  Multiply .84 by 60 to get 50.4 seconds (round to 50).

Answer 47° 51' 50"

Yep..... c = √85

 x+x-1+x*2-5=169     simplify

2x - 1 + x^2 - 5  = 169

x^2 + 2x - 6  = 169      subtract 169 from both sides

x^2 + 2x - 175  = 0      this will not factor......using the on-site solver, we have

$${{\mathtt{x}}}^{{\mathtt{2}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{175}} = {\mathtt{0}} \Rightarrow \left\{ \begin{array}{l}{\mathtt{x}} = {\mathtt{\,-\,}}{\mathtt{4}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{11}}}}{\mathtt{\,-\,}}{\mathtt{1}}\\
{\mathtt{x}} = {\mathtt{4}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{11}}}}{\mathtt{\,-\,}}{\mathtt{1}}\\
\end{array} \right\} \Rightarrow \left\{ \begin{array}{l}{\mathtt{x}} = -{\mathtt{14.266\: \!499\: \!161\: \!421\: \!599\: \!4}}\\
{\mathtt{x}} = {\mathtt{12.266\: \!499\: \!161\: \!421\: \!599\: \!4}}\\
\end{array} \right\}$$

And those are the two solutions.....

x-33-15+20=21     combine like terms on the right

x - 48 + 20 = 21

x - 28  = 21     add 28 to both sides

x = 49

50  = .40N    divide both sides by .40

50/.40 = N

50 / (4/10) = N

50 x (10/4) = N

500 / 4  = N

N =   125

5 hrs + 1 hr + 1/2 hr  = 

6 + 1/2 hrs

And adding that to 3:30.....we have 10:00

6|2|-6|-3|/|-3(2)|  =

[6*2]  - 6 [3 / 6] =

12 - 6(1/2) =

12 - 3 =

9

no 4

no it is 38

Oh, that’s right. The book would have to be replaced after it was selected.

It softly and suddenly vanishes away after each selection like the baker, after the boojum variety of snark selects him.

Makes it kind of difficult to select 4 books for reading, doesn’t it?

(-1)^2  = (-1)(-1) = 1

So

2(-1)^2  =

2 (1)  = 

2

Mmmm....the on-site calc seems to give the same result  - (3) -  when I evaluated this (???)

(ln 4) * d/dx 4^x  =  (ln 4) 4^x

So we have

(ln 4)^2 * 4^x    {remember that ( ln 4 )  is just a constant }

(2 + y) ^3    = y^3 + 6y^2 + 12y + 8

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3(p) - 4(p + 2) + 5  = 0

3p - 4p - 8 + 5 = 0 

-p = 3

p = -3

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3x + 5 = 4y     divide by 4 on both sides

y = (3/4)x + 5/4  ..... using y = mx+ b ....   the slope (gradient)  = m =  3/4

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√48 = √[16 * 3 ] =  4√3

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80, 40, 20

yes

1000 - 24(31)  =

1000 - 744 =

256 left