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58%

9/(2/3)=(9/1)/(2/3)=(9/1)*(3/2)=(9*3)/(1*2)=27/2=13.5

The fraction symbol is the sybmol for division, / .  It is located on the ? button

A financial agreement requires the payment of $1200 in 9 months, $1400 in 18 months, and $1600 in 30 months. When would an alternative single payment of $4000 have to be made if money is worth 7% compounded quarterly?

This is very similar to the Hockey player problem. You have to find the PV of the 3 payments, $1,200, $1,400 and $1,600 which will give you $3,745.91. So, the question becomes: how long does it take for this amount to grow to $4,000?. If you solve for n, you will see that it takes 11.35 months for the alternative payment of $4,000 to be made.

Not sure what you are asking in the first part.

The equality is correct.

Remember that

\(e^{\imath\theta}= \cos\theta + \imath \sin\theta \)

and that

\(\cos(-\pi/4)=1/\sqrt{2}\),

\(\sin(-\pi/4)=-1/\sqrt{2}.\)

Henrik, a Canadian hockey player, agreed to a contract whereby he was to receive $40,000 in 6 months, $60,000 in 8 months, and $100,000 in 18 months. The deal was renegotiated after 4 months when he received a payment of $30,000. He agreed to accept a payment of $172,000 at a later date. When should Henrik receive the payment is money is worth 6% compounded monthly?

This is how I would do it. First find the PV of the original contract of $40,000, $60,000 and $100,000.

If you did that, you should get $187,887.45.This is PV of original contract. But, 4 months into this, it was re-negotiated, which means that this amount has to be projected 4 months into the future. In other words, you have to find the FV of this amount for 4 months, which comes to $191,673.48. From this amount you have to subtract $30,000 that he received when the contract was re-negotiated. That leaves you with $161,673.48. So, the question becomes: how long does it take for this amount to grow into $172,000?. If you solve for n, you will see that it takes 12.41 months from the day that he received the first $30,000. So, in just over a year, he should receive his $172,000.

3.14

\(\displaystyle y = \frac{c(Ae^{cx}-1)}{(Ae^{cx}+1)},\)    c and A constants.

Greatly Appreciated!

z=(2-2i)^22 - (-1+isqrt(3))^33 , n=4  =-2.17780 × 10^40

Why is this equality valid 2-2i = 2*sqrt(2)*e^-i*pi/4 = 2^3/2*e^-i*pi/4 ?

This appears to be FALSE!.

A promissory note for $600 dated May 15, 2016, requires an interest payment of $150 at maturity. If interest is at 9% compounded monthly, determine the due date of the note.
 

You basically have a promissory note with a PV of $600 and a FV of $750. The question is how long would it take it to grow from $600 to $750, by using the common formula: FV=PV(1+r)^n. The task is to find n.

First, you have to convert the interest rate from monthly compound to DAILY compound, which comes to:8.9675%. By doing that, you will get exact number of days from May 15, 2016 to maturity. And if you did that right, you will see that it will take 909 days to maturity. If you added 909 day to May 15, 2016, you will get

Nov. 10, 2018, which should be the due date of the promissory note.

EVERYTHING MAN!!!!!!!!!

Go online and use calculator:http://www.calculatorsoup.com/calculators/math/fractions.php

105/21/2=105/(5/2)=105 X 2/5=210/5=42

Just use ANY calculator! Example: 3/8. Just enter 3 first, then the / sign, followed by 8 and then the = sign. The calculator will give you .375.

Just divide the Denominator (the BOTTOM number) into the Numerator (the TOP number)

45/(1-20%)=45/.80=56.25 Pounds the original cost before 20% discount.

365!/341!. Most calculators cannot handle large numbers such as 365!, which is 779 digits long!.

365!/341!=nPr=365,(365-341)=365,24=1.4432680 X 10^61.

Use the key labled "npr", by entering 365 first, then press that key, then enter 24 followed by = sign twice.

Those ae some HUGE numbers there....too big for most calculators.

21 b/c 9=3*3 and 10=5*2, so 3*2=6 and 3*5=15, 15+6=21 

THAT IS SO OLD

i = sqrt(-1) , an IMAGINARY NUMBER.     If you ask the calculator for the sqrt of a NEGATIVE number 'i' will be involved.   You must have tried sqrt(-16) .

Order of operations is the order in which you solve an equation.  The order is parentheses, exponents, multiplication/division, addition/subtraction, or PEMDAS.  (A way to remember the order:  Please Excuse My Dear Aunt Sally).

PEMDAS means that if, for example, you have 2*(1+3), you do 1+3 before you do 2*1 because there are perentheses around the 1+3.

The order in which the following is solved is as followes:

1-3*4+72/9-6^2*3+(5-1)+3+8-2=

First we deal with everything in P:

1-3*4+72/9-6^2*3+4+3+8-2=

Next we deal with E:

1-3*4+72/9-36*3+4+3+8-2=

Then MD, in the order of which they appear:

1-12+8-108+4+3+8-2=

And finally, AS in the order they appear:

-11+8-108+4+3+8-2=

-3-108+4+3+8-2=

-111+4+3+8-2=

-98

I hope this helps!

The order of operation is the order of how to solve a mathmatic question.

Meaning, it is the order of which operation you do first (opertaion is like: add, substract, multipy, divide, etc...)

Search it for the rules

tan[theta] = 1  ... at  pi/4, 5pi/4, 9pi/4 and 13pi/4

So......dividing each angle by 2

tan [ 2* theta]  = 1     at   pi/8, 5pi/8 , 9pi/8  and 13pi/8