Melody

$480 invested at 12% compounded quarterly after a period of 7years.

480(1+0.12/4)^(4*7) = 1098.205284353885345

$1098.21

Hi Rosala,

It is great to see you.

Come back and visit often.   :)

Hi Max,

I looked it up up in wolfram|alpha

http://www.wolframalpha.com/input/?i=log(-1)

There is no fault to your logic :)

I do agree though, it is interesting :)

I'll do a couple

1.If f(x) =√3x+3 , what is the equation for f^–1(x)?

Let

\(Let\;\;y=f(x)\\ y=\sqrt3x+3\\ y-3=\sqrt3x\\ \frac{y-3}{\sqrt3}=x\\ x=\frac{\sqrt3(y-3)}{3}\\~\\ f^{-1}(x)=\frac{\sqrt3(x-3)}{3}\\~\\ \)

2.If the parent function is √x, describe the translation of the function √x+7

This is a translation 7 units up

3.Rewrite y = √9x+45  +2 to make it easy to graph using a translation. Describe the graph. 

y = √9x+45  +2

y = 3x+47

The parent graph could be y=3x     gradient is 3 moved up so the y intercept is 47

What is the HCF of 32 and 40

the factors of 32 are   1,2,4,8,16 and 32

what is the largest of these that also goes into 40?

That will be the highest common factor :)

Yur question does not make sense.    

Nice answer Geno :)

Helo,

We are not here to do all your homework for you.  Just choose one question -post it - get you answer - say thank you and try to learn from it.  If you do nt understand then query the answer. 

Also you first question makes no sense.  How can an angle be measured in cm ??

If f(6)=9 and f(x)=g(x)+2, what point

If you graphed g(x) and f(x), f(x) for any givein x value, f(x) would always be 2 units highter. So there could never be any intersection of the two graphs.

 If f(6)=9 and f(x)=g(x)+2, what point

f(6)=g(x6)+2

9=g(6)+2

g(6)=7

I don't see that you can do anything else with this.  ://