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I assume there are 100 pennied in a dollar.

1200 pennies = 12.00 dollars

Hi Eight MersenePrime,

I was thinking about your username...   I looked up meridians to see where you might come from.

I am thinking that maybe you are from Strasbourg in France....  :)

I had not realized before that Bamako is further west than london - quite a lot further west !!

I love looking at maps :))

Now to answer your question :)

cos(19\pi/12)

\(cos(\frac{19\pi}{12})\\ \text{4th quadrant}\\ =+cos(\frac{(24-19)\pi}{12})\\ =+cos(\frac{5\pi}{12})\\ =+cos(\frac{3\pi}{12}+\frac{2\pi}{12})\\ =cos(\frac{\pi}{4}+\frac{\pi}{6})\\ =cos(\frac{\pi}{4})cos(\frac{\pi}{6})-sin(\frac{\pi}{4})sin(\frac{\pi}{6})\\ =cos(45^\circ)cos(30^\circ)-sin(45^\circ)sin(30^\circ)\\ =\frac{1}{\sqrt2}\times \frac{\sqrt3}{2}-\frac{1}{\sqrt2}\times \frac{1}{2}\\ =\frac{\sqrt3-1}{2\sqrt2}\\ =\frac{\sqrt3-1}{2\sqrt2}\times \frac{\sqrt2}{\sqrt2}\\ =\frac{\sqrt6-\sqrt2}{2*2}\\ =\frac{\sqrt6-\sqrt2}{4}\\ \)

What is the length of side AB in the following triangle rounded to the nearest tenth?

\(\begin{array}{|rcll|} \hline AB &=& \sqrt{5^2+6^2} \\ &=& \sqrt{25+36} \\ &=& \sqrt{61} \\ &=& 7.81024967591 \\ &\approx& 7.81 \\ \hline \end{array}\)

How do you find the equation of an exponential function from a graph?

Slope-intercept form is   y = mx + b    where m= slope and b = y-axi intercept

So solve your equation,  x - 7y = 4      for 'y'

x-7y =4      Add 7 y    and subtract 4 from both sides

x-4 =7y     rearrange for ease

7y=x-4   Now divide both sides by 7

y = 1/7 x - 4/7           there it is....  m= slope = 1/7    and   b= -4/7

FV=PV(1+r x t  )    r = interest rate /year   t = number of years

102 = 74 (1+r x 2 )

1+ 2r = 102/(74 )

r =.1891892=18.9189%

14 / √3      mutliply top/bottom by √3

14*√3 / [ √3 *√3]  =

(14√3) / 3

Ok thanks everyone! :)

Ah....take EP's answer as the correct one......I thought I read that both were saving.....my bad....!!!

Thank you! :)

To calculate a result you will need to give the number of times the deposit is compunded per year...once a year?   Monthly? Daily?  Continuoously??

Amount of money Judy has a given time = 20 + 6x      where x = #weeks

Amount ida has = 172 - 4x

When are they equal?

20 + 6x = 172-4x

10x=152

x = 15.2 weeks     

20 + 6n  = 172 + 4n      where n is the number of weeks it will take them to have the same amount

Subtract  4n, 20 from both sides

2n  =   152        divide  b 2

n  =  76  weeks

For example:

log 4 ≈ 0.477

log 4 ~ 0.477

Which statement is more correct?

\(\begin{array}{|rcll|} \hline log 4 \approx 0.477 \quad \text{is correct, it means approximately } \\ \hline \end{array} \)

\( {\displaystyle \sim } \):
\({\displaystyle a\sim b} \qquad\)Equivalence relation between elements  \({\displaystyle a}\) and \({\displaystyle b}\)
\({\displaystyle a\sim b} \qquad \)\({\displaystyle a}\) is proportional to \({\displaystyle b}\)

If tanØ=3/4 what is sinØ=?

\(\begin{array}{|rcll|} \hline \sin(\phi) = \frac35 \quad \text{or} \quad \sin(\phi) = -\frac35 \\ \hline \end{array}\)

Just post your problem......we can probably  help you......

Take  the sine inverse  of  [ Opposite / Hypotenuse]  .....this will give you "A"

yay i like ice cream especially starbucks mhhhhhmmmmm so yummy in my tummy.

(a³)⁴

=(aaa)(aaa)(aaa)(aaa)

= a¹²

The slant height  is just the hypotenuse of the right triangle  =

sqrt [10^2 + 5^2  ]  =  sqrt [ 100 + 25 ]  = sqrt [125]

The slope is the x-coefficient when the equation is in slope-intercept form.

Slope-intercept form is y =mx + b

The "m" is the slope.

So just get the equation into that form.

2y = 6x - 8

Divide both sides by 2.

y = 3x - 4

Now it is in slope-intercept form. 3 is the x-coefficint, so 3 is the slope.

Volume of cylinder  = pi * r^2 * h  = 3.14 * ( 5)^2  * (22) ≈  1727 in^3

Volume of cone  =  (1/3) *pi* r^2 * h  =  (1/3) * 3.14 * (5)^2  * sqrt (12^2 - 5^2)  ≈ 285 in^3

Total volume  = [1727 + 285] in^3  = 2012 in^3

sqrt [7^2 - 3^2]  =  sqrt [ 49 - 9]  = sqrt [ 40 ]