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Find the side lengths

\(\sqrt{16}\) = 4

\(\sqrt{49}\) = 7

Now find the scale factor!

Draw little pics to help your thinking process.

A nickel is 0.185 cm thick. How thick is a roll of nickels worth $2?

Hello Guest!

1N i= 5ct

The thickness of a roll of nickels worth $2 is

\(\frac{2\$}{1Ni}\cdot\frac{Ni}{5ct}\cdot \frac{100ct}{\$}\cdot 0.185cm=\color{blue}7.4cm\)

  !

Image is blocked on my browser! Can you provide the picture in your question? Thanks

Why don't you show us a "better solution" ??

Q and D are conjugates, which just means that the real number is the same and the signs of the imaginary numbers are opposites. This means you can think of multiplying them together like a difference of squares.

Maintain a stable? You mean like cleaning up horsepoop and mucking out stalls or something?

I wouldn't think of it as "elegant," but it's a really interesting approach to the problem.

See this elegant answer # 11 by Max Wong:  https://web2.0calc.com/questions/help-plzzzz_3

It is 18

Notice that the denominator is a geometric sequence. What do we know about the sum of a geometric sequence?

3ab - 12a + 7b  +   ____

3a ( b - 4)  + 7 ( b - 4)  =

(3a  + 7) ( b - 4)

3ab -12a  + 7b +   - 28

This is a good answer Cal. Thanks 

Let  the row length  =  L

We have  this equation

Since  the number  of  chairs  she  has  is  the  same  we have

2L  + 1  =  8 L  -11     add  11 to  both sides, subtract  2L from both sides

12  =  6L     divide both  sides  by 6

2  = L

I mean show evidence that you are learning something.

Ask questions about their responses.

You are not meant to be just taking the answer or just copying the working.

You are meant to be learning!

Say 'thank you'. Or say you do not think it is correct because [fill in the blanks]

But also ask things like :

"how did you get from line 2 to line three"

"I don't quite understand this bit .... could you please explain more?"

Inversely proportional means   a = k/b     when a = -3   b = 16     then  k (the proprtionality konstant) = -48

so    a =- 48/b   

Now put in '8' for b   to compute 'a'