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+3146

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adminAug 30, 2012

Aug 29, 2012

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1/2=.5
1/4=.25

So, .5+.25=.75

FITZ

GuestAug 29, 2012

+2

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HowardVAug 29, 2012

Aug 28, 2012

+3146

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[input]x/(x+0.4) - (x-0.4)/(x+0.4) = 2.2[/input]

adminAug 28, 2012

Aug 27, 2012

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how do u do algebra ? its confusing to me.

GuestAug 27, 2012

Aug 25, 2012

+3146

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[input]3 * 10^8 / (87 *10^9)[/input]

adminAug 25, 2012

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Hola juanelo,

Mira que eres tonto no saber convertir horas y minutos al sistema decimal.
Pues te vas a quedar con las ganas porque no te lo voy a decir.

Muchas gracias y menos playita guapo y mas estudiar bonito de playa !!!

GuestAug 25, 2012

Aug 24, 2012

+3146

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[input]6x^2+7x-3=0[/input]
6x^2+7x-3=0 equals (2x+3)*(3x-1)=0
[input](2x+3)*(3x-1)=0[/input]

adminAug 24, 2012

Aug 23, 2012

0

Ok, what I think you're asking is this:
What's the length of b and a?
C
| \
| \ So we need c and a. First, we need C (the angle). The sum of all angles in
b| \ a a triangle is 180, and we have 2 angles: 90 and 29. 180-90-29=61, so C=61.
| \ Now for the equations. Let's look at a first. a/sinA=c/sinC. This gives us
| \ a/sin(90)=8/sin(61). Now balance to isolate a;
|_______\ a=8*sin90/sin61. Punch that in to a calculator for 9.14 (rounded). so a=9.14m
A 8 B=29 Now for b. b/sinB=c/sinC. This means b/sin(29)=8/sin(61). Now take the
(not drawn to same steps; b=(8*sin29)/sin61. Give this to a calculator to get about 4.43m.
scale)
So a=9.14m and b=4.43m

GuestAug 23, 2012

+15

WidthxLengthxHeight

GuestAug 23, 2012

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Anyways, the answer I got for this was 24

GuestAug 23, 2012

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Sorry, nevermind, I'm wrong, it does, to the left of x^2. I still prefer x^.5 though.

GuestAug 23, 2012

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The calculator doesn't have a square root button, because if you put b^0.5 it gives you the square root

GuestAug 23, 2012

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The order of operations needs to be changed. What you currently have is 15, but tweak it to look like this:

(6+7)x2-5

and the answer will be 21

GuestAug 23, 2012

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I fixed it.

In case anybody else is having this problem, the calculator on this website offers an exponent function, but it doesn't work; it successfully introduces an exponent, but doesn't allow a base, making powers unavailable. Instead use the ^ key to represent exponents.

A little arbitrary.

GuestAug 23, 2012

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Use scientific notation. It's used for numbers that are really big, although 1 billion isn't all that huge.

It's 4.4*10^8

GuestAug 23, 2012

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Ok, so I'll assume you're using the United States fluid system, which has 32 fluid ounces in a quart. Add the amounts of fluid together, 144+24+56=224. Now divide by 32, which is the number of ounces in a quart:

224/32=7

In total, there are 7 quarts in the final mixture.

You're single equation would look like this:
(144+24+56)/32

GuestAug 23, 2012

+2

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admin:
[input](1+0.2373/365)^365[/input]

126.7% APY

How do we calculate the same thing but compounded continuously?

Thanks in advance,

J Henderson

henderson92Aug 23, 2012

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So I'll assume you're looking for the probability of getting tails for the coin, and a six from the die. Assuming it's a six-sided die, you have a 1 in 6 chance of getting a six, and as for the coin, you have a 1 in 2 chance of flipping tails.

Multiply.

1/(6*2)=1/12, so you have a 1 in 12 chance of getting both of these results on your first try.

GuestAug 23, 2012

+3146

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[input]factorize( 550 )[/input]

adminAug 23, 2012

Aug 22, 2012

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There must be something missing because I get the same thing but the answer is 0.0014..... Or something like that, don't have my book in front of me

GuestAug 22, 2012

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forget this...
i will get help at school

GuestAug 22, 2012

+3146

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[input]NN=14.23304862[1/sec]; n = 2 * Pi * NN[/input]

adminAug 22, 2012

+3146

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adminAug 22, 2012

+3146

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Guest:
y(4+6)-5 for y=1/2

[input](1/2)*(4+6)-5[/input]

or f(y)=y*(4+6)-5
f( 1/2 )

[input]f(y)=y*(4+6)-5; f( 1/2 )[/input]

adminAug 22, 2012

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