Melody

u=0

a=2.7

t=6.8

find s

s=ut+1/2*at^2

you can do the substitution.

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Do you like these variables better?  

initial velocity is u it is upwards

acceleration is   $$\ddot x$$

$$\\u=341\\
\ddot x=-9.8\\
\dot x =-9.8t+341\\
x=(-9.8t^2)/2+341t+c\\
$let the initial displacement be 0 so c=0$\\
x=(-4.9t^2)+341t\\
when \;\;t=2.2\\
x=-4.9*2.2^2\;+\;341*2.2\\
etc$$

ok Linarose you messaged me that you do not understand my variables.

I have done this as a calculus question.

Perhaps you need it to be done with physics formulas.

Is that the problem?  Let me know.  :)

Acceleration is just change in velocity divided by time so

Accel=16/12.1     m/s^2

An item is priced at $13.53. If the sales tax is 5%, what does the item cost including sales tax?

tax=5% of 13.53=5/100*13.53

$${\frac{{\mathtt{5}}}{{\mathtt{100}}}}{\mathtt{\,\times\,}}{\mathtt{13.53}} = {\frac{{\mathtt{1\,353}}}{{\mathtt{2\,000}}}} = {\mathtt{0.676\: \!5}}$$

That is 68 cents to the nearest cent.

Final cost will be  $13.53 + 0.68

$${\mathtt{13.53}}{\mathtt{\,\small\textbf+\,}}{\mathtt{0.68}} = {\frac{{\mathtt{1\,421}}}{{\mathtt{100}}}} = {\mathtt{14.21}}$$

So the final cost will be $14.21

That is excellent 

these brackets are identical.

If you take something away from itself then the answer is always 0

39=3*13

117=3*3*13=3*39

so 117 is a multiple of 39

9=3*3  so 117 is a multiple of 9

so the lowest common multiple is 117

That would sound a bit "sus"

Sus is the latin word and the Genus for  "p*g"

Oiclid - get it - oh well, I can't impress all the people all the time.  :))

No anonymous.

The inverse of a function means what would it be if it was reflected about the line y=x.

You get this answer by swapping the x and y values around.

Wed 29/10/14

1)  A bit of 'imaginary' information :)